#102858
Closest named color: Marine (#042E60). oklch(28.9% 0.092 262.3), rgb(16, 40, 88).
Aa
White text reads best on this color (14.32:1).
About this color
#102858 is a dark, moderately saturated blue. In OKLCH its lightness is 29%, its chroma 0.092 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Marine (#042E60), ΔE 0.022 away. White text reads best on it, at 14.32:1.
| Hue family | Blues |
| Lightness | dark (29%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Marine (#042E60) |
| Black text | 1.46:1 |
| White text | 14.32:1 |
Values
| HEX | #102858 |
| RGB | rgb(16, 40, 88) |
| HSL | hsl(220, 69%, 20%) |
| OKLCH | oklch(28.9% 0.092 262.3) |
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 #102858 | 14.32:1 | AAA | Lc -103.8 | Preferred for body text |
| Black text on #102858 | 1.46:1 | Fails | Lc 0.0 | Not readable |
| #102858 text on white | 14.32:1 | AAA | Lc 100.8 | Preferred for body text |
| #102858 text on black | 1.46:1 | Fails | Lc 0.0 | 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 950.
-
Step 50
50
#F1F6FF
oklch(97.2% 0.013 262.4)
-
Step 100
100
#DFEAFF
oklch(93.5% 0.031 263.5)
-
Step 200
200
#C5DAFF
oklch(88.5% 0.056 261.8)
-
Step 300
300
#9FC1FF
oklch(80.9% 0.096 262.2)
-
Step 400
400
#6B9EFF
oklch(70.7% 0.153 262.2)
-
Step 500
500
#4382FF
oklch(63.2% 0.197 262.2)
-
Step 600
600
#1462FD
oklch(55.6% 0.241 262.2)
-
Step 700
700
#064FDD
oklch(49.1% 0.225 262.3)
-
Step 800
800
#0A42B2
oklch(42.6% 0.186 262.3)
-
Step 900
900
#113A8D
oklch(37.7% 0.145 262.2)
-
Step 950
950 (this color)
#102858
oklch(28.9% 0.092 262.3)
#102858 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) | #0A2E5A | 0.018 |
| Deuteranopia (no green cones) | #002757 | 0.014 |
| Tritanopia (no blue cones) | #00343B | 0.074 |
| Achromatopsia (no color) | #2A2A2A | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #102858
#102858
oklch(28.9% 0.092 262.3)
- #3A2800
#3A2800
oklch(29.1% 0.06 82.4)
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 #102858, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine #042E60 ΔE 0.022
- Prussian Blue #1D3557 ΔE 0.046
- Oxford Blue #1B263B ΔE 0.053
- Marine Blue #01386A ΔE 0.054
- Midnight Blue #191970 ΔE 0.056
- Space Cadet #2B2D42 ΔE 0.059
- Gunmetal #293241 ΔE 0.068
- Midnight Green #073B4C ΔE 0.069
Use #102858 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.