#2C508F
Closest named color: Dusk Blue (#26538D). oklch(43.8% 0.112 260.8), rgb(44, 80, 143).
Aa
White text reads best on this color (7.92:1).
About this color
#2C508F is a dark, moderately saturated blue. In OKLCH its lightness is 44%, its chroma 0.112 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Dusk Blue (#26538D), ΔE 0.011 away. White text reads best on it, at 7.92:1.
| Hue family | Blues |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Dusk Blue (#26538D) |
| Black text | 2.65:1 |
| White text | 7.92:1 |
Values
| HEX | #2C508F |
| RGB | rgb(44, 80, 143) |
| HSL | hsl(218, 53%, 37%) |
| OKLCH | oklch(43.8% 0.112 260.8) |
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 #2C508F | 7.92:1 | AAA | Lc -91.9 | Preferred for body text |
| Black text on #2C508F | 2.65:1 | Fails | Lc 16.8 | Dividers and decoration only |
| #2C508F text on white | 7.92:1 | AAA | Lc 87.2 | Fine for body text |
| #2C508F text on black | 2.65:1 | Fails | Lc -14.9 | Not readable |
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 800.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E3EAF7
oklch(93.6% 0.019 263)
-
Step 200
200
#CCDAF2
oklch(88.5% 0.036 261.3)
-
Step 300
300
#A9C2EC
oklch(81% 0.066 260.7)
-
Step 400
400
#7BA1E2
oklch(70.7% 0.105 260.8)
-
Step 500
500
#5988DA
oklch(63.1% 0.134 260.9)
-
Step 600
600
#3F70C7
oklch(55.5% 0.145 260.9)
-
Step 700
700
#315EAC
oklch(49.2% 0.134 260.6)
-
Step 800
800 (this color)
#2C508F
oklch(43.8% 0.112 260.8)
-
Step 900
900
#25406F
oklch(37.5% 0.087 260.7)
-
Step 950
950
#162641
oklch(27% 0.055 260.3)
#2C508F 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) | #325691 | 0.019 |
| Deuteranopia (no green cones) | #224D8E | 0.014 |
| Tritanopia (no blue cones) | #005F68 | 0.092 |
| Achromatopsia (no color) | #515151 | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C508F
#2C508F
oklch(43.8% 0.112 260.8)
- #6B4C00
#6B4C00
oklch(43.9% 0.09 81.6)
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 #2C508F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusk Blue #26538D ΔE 0.011
- Light Navy #155084 ΔE 0.027
- Cobalt #1E488F ΔE 0.028
- Light Navy Blue #2E5A88 ΔE 0.034
- Deep Sea Blue #015482 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.038
- Twilight #4E518B ΔE 0.044
- Blueberry #464196 ΔE 0.051
Use #2C508F 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.