#1680BD
Closest named color: Nice Blue (#107AB0). oklch(57.4% 0.128 241.5), rgb(22, 128, 189).
Aa
Black text reads best on this color (4.85:1).
About this color
#1680BD is a medium-dark, moderately saturated blue. In OKLCH its lightness is 57%, its chroma 0.128 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Nice Blue (#107AB0), ΔE 0.025 away. Black text reads best on it, at 4.85:1.
| Hue family | Blues |
| Lightness | medium-dark (57%) |
| Chroma | moderately saturated (0.128) |
| Temperature | cool |
| Nearest name | Nice Blue (#107AB0) |
| Black text | 4.85:1 |
| White text | 4.32:1 |
Values
| HEX | #1680BD |
| RGB | rgb(22, 128, 189) |
| HSL | hsl(202, 79%, 41%) |
| OKLCH | oklch(57.4% 0.128 241.5) |
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 #1680BD | 4.32:1 | AA large text | Lc -74.9 | Content text, not long reading |
| Black text on #1680BD | 4.85:1 | AA | Lc 34.7 | Non-text elements, placeholder text |
| #1680BD text on white | 4.32:1 | AA large text | Lc 69.4 | Content text, not long reading |
| #1680BD text on black | 4.85:1 | AA | Lc -32.2 | Non-text elements, placeholder text |
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
#F1F6FA
oklch(97.1% 0.008 241.7)
-
Step 100
100
#E1ECF4
oklch(93.7% 0.016 239.1)
-
Step 200
200
#C7DCED
oklch(88.4% 0.033 242.4)
-
Step 300
300
#A0C6E3
oklch(80.9% 0.058 241.3)
-
Step 400
400
#6AA8D5
oklch(70.7% 0.092 241.3)
-
Step 500
500
#3C91CA
oklch(63% 0.118 241.6)
-
Step 600
600 (this color)
#1680BD
oklch(57.4% 0.128 241.5)
-
Step 700
700
#00679C
oklch(49.2% 0.116 241.5)
-
Step 800
800
#035480
oklch(42.7% 0.099 241.7)
-
Step 900
900
#124667
oklch(37.8% 0.077 241.6)
-
Step 950
950
#0D293C
oklch(27% 0.049 241.5)
#1680BD 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) | #6381C0 | 0.062 |
| Deuteranopia (no green cones) | #4C73BC | 0.047 |
| Tritanopia (no blue cones) | #008F96 | 0.085 |
| Achromatopsia (no color) | #797979 | 0.128 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1680BD
#1680BD
oklch(57.4% 0.128 241.5)
- #AD640E
#AD640E
oklch(57.4% 0.128 61.7)
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 #1680BD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Nice Blue #107AB0 ΔE 0.025
- Windows Blue #3778BF ΔE 0.027
- Water Blue #0E87CC ΔE 0.027
- Steel Blue #4682B4 ΔE 0.033
- Cool Blue #4984B8 ΔE 0.037
- Blue NCS #118AB2 ΔE 0.037
- Flat Blue #3C73A8 ΔE 0.045
- Cerulean #457B9D ΔE 0.053
Use #1680BD 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.