#102A4B
Closest named color: Oxford Blue (#1B263B). oklch(28.4% 0.069 255.6), rgb(16, 42, 75).
Aa
White text reads best on this color (14.43:1).
About this color
#102A4B is a dark, muted blue. In OKLCH its lightness is 28%, its chroma 0.069 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Oxford Blue (#1B263B), ΔE 0.031 away. White text reads best on it, at 14.43:1.
| Hue family | Blues |
| Lightness | dark (28%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Oxford Blue (#1B263B) |
| Black text | 1.45:1 |
| White text | 14.43:1 |
Values
| HEX | #102A4B |
| RGB | rgb(16, 42, 75) |
| HSL | hsl(214, 65%, 18%) |
| OKLCH | oklch(28.4% 0.069 255.6) |
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 #102A4B | 14.43:1 | AAA | Lc -104.0 | Preferred for body text |
| Black text on #102A4B | 1.45:1 | Fails | Lc 0.0 | Not readable |
| #102A4B text on white | 14.43:1 | AAA | Lc 101.0 | Preferred for body text |
| #102A4B text on black | 1.45:1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#E0EBFA
oklch(93.6% 0.024 256.1)
-
Step 200
200
#C6DBF7
oklch(88.5% 0.045 255.6)
-
Step 300
300
#9EC3F5
oklch(80.8% 0.082 256.1)
-
Step 400
400
#67A3F0
oklch(70.7% 0.13 255.3)
-
Step 500
500
#3A89EB
oklch(63% 0.166 255.6)
-
Step 600
600
#0E70DA
oklch(55.5% 0.182 255.8)
-
Step 700
700
#005EBB
oklch(49.1% 0.165 255.5)
-
Step 800
800
#064D99
oklch(42.8% 0.14 255.7)
-
Step 900
900
#124179
oklch(37.7% 0.108 255.4)
-
Step 950
950 (this color)
#102A4B
oklch(28.4% 0.069 255.6)
#102A4B 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) | #1B2D4C | 0.017 |
| Deuteranopia (no green cones) | #11274A | 0.010 |
| Tritanopia (no blue cones) | #003236 | 0.055 |
| Achromatopsia (no color) | #2A2A2A | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #102A4B
#102A4B
oklch(28.4% 0.069 255.6)
- #3B2500
#3B2500
oklch(28.5% 0.06 75.3)
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 #102A4B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Oxford Blue #1B263B ΔE 0.031
- Marine #042E60 ΔE 0.038
- Space Cadet #2B2D42 ΔE 0.043
- Prussian Blue #1D3557 ΔE 0.044
- Dark #1B2431 ΔE 0.049
- Gunmetal #293241 ΔE 0.050
- Midnight Green #073B4C ΔE 0.057
- Dark Blue Grey #1F3B4D ΔE 0.061
Use #102A4B 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.