#1A7AAA
Closest named color: Nice Blue (#107AB0). oklch(55% 0.111 236.9), rgb(26, 122, 170).
Aa
White text reads best on this color (4.76:1).
About this color
#1A7AAA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 55%, its chroma 0.111 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Nice Blue (#107AB0), ΔE 0.010 away. White text reads best on it, at 4.76:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Nice Blue (#107AB0) |
| Black text | 4.40:1 |
| White text | 4.76:1 |
Values
| HEX | #1A7AAA |
| RGB | rgb(26, 122, 170) |
| HSL | hsl(200, 73%, 38%) |
| OKLCH | oklch(55% 0.111 236.9) |
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 #1A7AAA | 4.76:1 | AA | Lc -78.1 | Fine for body text |
| Black text on #1A7AAA | 4.40:1 | AA large text | Lc 31.5 | Non-text elements, placeholder text |
| #1A7AAA text on white | 4.76:1 | AA | Lc 72.6 | Content text, not long reading |
| #1A7AAA text on black | 4.40:1 | AA large text | Lc -29.1 | Dividers and decoration only |
Tints and shades
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
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C9DCEA
oklch(88.5% 0.028 239.7)
-
Step 300
300
#A3C6DD
oklch(80.9% 0.05 237)
-
Step 400
400
#6FA8CD
oklch(70.6% 0.081 237.9)
-
Step 500
500
#4492C0
oklch(63.1% 0.103 237.4)
-
Step 600
600 (this color)
#1A7AAA
oklch(55% 0.111 236.9)
-
Step 700
700
#0B6894
oklch(49.1% 0.104 237.3)
-
Step 800
800
#105578
oklch(42.7% 0.086 237.1)
-
Step 900
900
#184660
oklch(37.6% 0.066 237.2)
-
Step 950
950
#102938
oklch(26.9% 0.042 237.4)
#1A7AAA 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) | #637AAC | 0.064 |
| Deuteranopia (no green cones) | #506DA9 | 0.051 |
| Tritanopia (no blue cones) | #00868B | 0.070 |
| Achromatopsia (no color) | #737373 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1A7AAA
#1A7AAA
oklch(55% 0.111 236.9)
- #A25F27
#A25F27
oklch(55.1% 0.111 57)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #1A7AAA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Nice Blue #107AB0 ΔE 0.010
- Flat Blue #3C73A8 ΔE 0.026
- Muted Blue #3B719F ΔE 0.031
- Ocean Blue #03719C ΔE 0.034
- Cerulean #457B9D ΔE 0.035
- Sea Blue #047495 ΔE 0.037
- Dull Blue #49759C ΔE 0.037
- Windows Blue #3778BF ΔE 0.040
Use #1A7AAA 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.