#024687
Closest named color: Twilight Blue (#0A437A). oklch(39.7% 0.124 253.9), rgb(2, 70, 135).
Aa
White text reads best on this color (9.42:1).
About this color
#024687 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.124 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.022 away. White text reads best on it, at 9.42:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.124) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.22:1 |
| White text | 9.42:1 |
Values
| HEX | #024687 |
| RGB | rgb(2, 70, 135) |
| HSL | hsl(209, 97%, 27%) |
| OKLCH | oklch(39.7% 0.124 253.9) |
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 #024687 | 9.42:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #024687 | 2.22:1 | Fails | Lc 12.8 | Not readable |
| #024687 text on white | 9.42:1 | AAA | Lc 91.1 | Preferred for body text |
| #024687 text on black | 2.22:1 | Fails | Lc -11.2 | 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 900.
-
Step 50
50
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DEEBFC
oklch(93.5% 0.027 255.1)
-
Step 200
200
#C2DCFB
oklch(88.5% 0.051 252.9)
-
Step 300
300
#97C4FC
oklch(80.9% 0.093 254.2)
-
Step 400
400
#59A3FB
oklch(70.7% 0.149 254.1)
-
Step 500
500
#1889F8
oklch(63.1% 0.19 253.8)
-
Step 600
600
#0072D7
oklch(55.6% 0.177 254)
-
Step 700
700
#0060B6
oklch(49.2% 0.156 253.8)
-
Step 800
800
#004E96
oklch(42.7% 0.135 253.8)
-
Step 900
900 (this color)
#024687
oklch(39.7% 0.124 253.9)
-
Step 950
950
#04264B
oklch(26.9% 0.078 253.9)
#024687 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) | #214C89 | 0.027 |
| Deuteranopia (no green cones) | #004186 | 0.015 |
| Tritanopia (no blue cones) | #005660 | 0.092 |
| Achromatopsia (no color) | #464646 | 0.124 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #024687
#024687
oklch(39.7% 0.124 253.9)
- #613F00
#613F00
oklch(39.7% 0.084 74.6)
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 #024687, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.022
- Cobalt #1E488F ΔE 0.022
- Light Navy #155084 ΔE 0.034
- Deep Sea Blue #015482 ΔE 0.044
- Dusk Blue #26538D ΔE 0.048
- Marine Blue #01386A ΔE 0.062
- Blueberry #464196 ΔE 0.071
- Light Navy Blue #2E5A88 ΔE 0.071
Use #024687 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.