#1C668D
Closest named color: Peacock Blue (#016795). oklch(48.5% 0.094 237), rgb(28, 102, 141).
Aa
White text reads best on this color (6.29:1).
About this color
#1C668D is a medium-dark, moderately saturated blue. In OKLCH its lightness is 48%, its chroma 0.094 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Peacock Blue (#016795), ΔE 0.014 away. White text reads best on it, at 6.29:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Peacock Blue (#016795) |
| Black text | 3.33:1 |
| White text | 6.29:1 |
Values
| HEX | #1C668D |
| RGB | rgb(28, 102, 141) |
| HSL | hsl(201, 67%, 33%) |
| OKLCH | oklch(48.5% 0.094 237) |
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 #1C668D | 6.29:1 | AA | Lc -86.1 | Fine for body text |
| Black text on #1C668D | 3.33:1 | AA large text | Lc 23.0 | Dividers and decoration only |
| #1C668D text on white | 6.29:1 | AA | Lc 81.0 | Fine for body text |
| #1C668D text on black | 3.33:1 | AA large text | Lc -20.9 | 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 700.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF2
oklch(93.5% 0.014 241)
-
Step 200
200
#CADCE8
oklch(88.5% 0.025 236.9)
-
Step 300
300
#A6C6DB
oklch(81% 0.045 236.9)
-
Step 400
400
#74A8C8
oklch(70.7% 0.072 236.2)
-
Step 500
500
#4D92BA
oklch(63.1% 0.092 236.2)
-
Step 600
600
#2D7BA7
oklch(55.5% 0.101 237.5)
-
Step 700
700 (this color)
#1C668D
oklch(48.5% 0.094 237)
-
Step 800
800
#1C5574
oklch(42.8% 0.077 236.7)
-
Step 900
900
#1E465E
oklch(37.7% 0.061 237.7)
-
Step 950
950
#132937
oklch(27% 0.038 238.3)
#1C668D 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) | #53668F | 0.053 |
| Deuteranopia (no green cones) | #445B8C | 0.044 |
| Tritanopia (no blue cones) | #007073 | 0.061 |
| Achromatopsia (no color) | #606060 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #1C668D
#1C668D
oklch(48.5% 0.094 237)
- #865023
#865023
oklch(48.5% 0.094 57.6)
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 #1C668D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Peacock Blue #016795 ΔE 0.014
- Denim #3B638C ΔE 0.024
- Light Navy Blue #2E5A88 ΔE 0.035
- Ocean Blue #03719C ΔE 0.035
- Sea Blue #047495 ΔE 0.041
- Denim Blue #3B5B92 ΔE 0.041
- Dusky Blue #475F94 ΔE 0.045
- YInMn Blue #415A77 ΔE 0.049
Use #1C668D 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.