Nice Blue #107AB0
Nice Blue is a medium-dark, moderately saturated blue with hex code #107AB0 and RGB rgb(16, 122, 176).
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White text reads best on this color (4.73:1).
About this color
#107AB0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.120 and its hue 239°. Its hue sits on the cool side of the wheel. It is the named color Nice Blue. White text reads best on it, at 4.73:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Nice Blue |
| Black text | 4.43:1 |
| White text | 4.73:1 |
Colors that go with Nice Blue
Matches found by rotating Nice Blue around the OKLCH hue wheel, each labelled with the closest name in our list.
Complementary
The opposite hue (180°).
Analogous
Neighbouring hues, 30° either side.
Triadic
Three hues spaced 120° apart.
Color palettes with Nice Blue
Curated color palettes that contain a color within ΔE 0.06 (OKLab) of Nice Blue, closest first.
Similar named colors
The eight named colors closest to Nice Blue, with their ΔE distance.
- Flat Blue #3C73A8 ΔE 0.029
- Windows Blue #3778BF ΔE 0.034
- Muted Blue #3B719F ΔE 0.036
- Ocean Blue #03719C ΔE 0.038
- Cerulean #457B9D ΔE 0.043
- Steel Blue #4682B4 ΔE 0.044
- Dull Blue #49759C ΔE 0.044
- Sea Blue #047495 ΔE 0.044
More about Nice Blue
How to make Nice Blue
A starting recipe from common paint colors, found with a spectral paint model (the color mixer’s paint mode). Real pigments vary, so mix a small test batch and adjust.
- 4 parts blue
- 2 parts white
- 1 part green
Recipe result: #3179B3, a difference of ΔE 0.017 from Nice Blue. That is very close: most people will not see the difference.
Codes for Nice Blue in every format
| HEX | #107AB0 |
| RGB | rgb(16, 122, 176) |
| HSL | hsl(200, 83%, 38%) |
| OKLCH | oklch(55.2% 0.12 239.1) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #107AB0 | 4.73:1 | AA | Lc -77.8 | Fine for body text |
| Black text on #107AB0 | 4.43:1 | AA large text | Lc 31.7 | Non-text elements, placeholder text |
| #107AB0 text on white | 4.73:1 | AA | Lc 72.4 | Content text, not long reading |
| #107AB0 text on black | 4.43:1 | AA large text | Lc -29.3 | Dividers and decoration only |
Shades and tints of Nice Blue
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 600.
-
Step 50
50
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF3
oklch(93.7% 0.015 235.4)
-
Step 200
200
#C8DCEB
oklch(88.4% 0.03 240.2)
-
Step 300
300
#A1C6E0
oklch(80.8% 0.054 239)
-
Step 400
400
#6CA8D1
oklch(70.6% 0.087 239.5)
-
Step 500
500
#3F92C5
oklch(63.1% 0.111 239)
-
Step 600
600 (this color)
#107AB0
oklch(55.2% 0.12 239.1)
-
Step 700
700
#006898
oklch(49.2% 0.11 238.7)
-
Step 800
800
#09557C
oklch(42.8% 0.093 239)
-
Step 900
900
#154663
oklch(37.6% 0.071 239.1)
-
Step 950
950
#0E293A
oklch(26.9% 0.046 239.3)
Nice Blue with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #607BB2 | 0.063 |
| Deuteranopia (no green cones) | #4B6DAF | 0.049 |
| Tritanopia (no blue cones) | #00888D | 0.079 |
| Achromatopsia (no color) | #737373 | 0.120 |
Use Nice Blue in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.