#03102A
Closest named color: Rich Navy (#001219). oklch(17.9% 0.057 260.2), rgb(3, 16, 42).
Aa
White text reads best on this color (18.89:1).
About this color
#03102A is a very dark, muted blue. In OKLCH its lightness is 18%, its chroma 0.057 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Rich Navy (#001219), ΔE 0.039 away. White text reads best on it, at 18.89:1.
| Hue family | Blues |
| Lightness | very dark (18%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Rich Navy (#001219) |
| Black text | 1.11:1 |
| White text | 18.89:1 |
Values
| HEX | #03102A |
| RGB | rgb(3, 16, 42) |
| HSL | hsl(220, 87%, 9%) |
| OKLCH | oklch(17.9% 0.057 260.2) |
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 #03102A | 18.89:1 | AAA | Lc -107.3 | Preferred for body text |
| Black text on #03102A | 1.11:1 | Fails | Lc 0.0 | Not readable |
| #03102A text on white | 18.89:1 | AAA | Lc 105.2 | Preferred for body text |
| #03102A text on black | 1.11:1 | 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
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF7
oklch(93.5% 0.02 260.2)
-
Step 200
200
#CBDAF3
oklch(88.5% 0.038 260.7)
-
Step 300
300
#A8C2ED
oklch(80.9% 0.067 260.4)
-
Step 400
400
#79A1E4
oklch(70.7% 0.108 260.4)
-
Step 500
500
#5688DC
oklch(63% 0.138 260.2)
-
Step 600
600
#3B70CA
oklch(55.6% 0.151 260.3)
-
Step 700
700
#2E5DAF
oklch(49.1% 0.141 260.7)
-
Step 800
800
#274D8D
oklch(42.8% 0.115 260.2)
-
Step 900
900
#244071
oklch(37.6% 0.091 260.8)
-
Step 950
950 (this color)
#03102A
oklch(17.9% 0.057 260.2)
#03102A 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) | #03132B | 0.010 |
| Deuteranopia (no green cones) | #000F29 | 0.008 |
| Tritanopia (no blue cones) | #00161A | 0.044 |
| Achromatopsia (no color) | #111111 | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03102A
#03102A
oklch(17.9% 0.057 260.2)
- #1A0F00
#1A0F00
oklch(17.9% 0.037 79)
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 #03102A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Rich Navy #001219 ΔE 0.039
- Dark Navy #000435 ΔE 0.043
- Rich Black #0D1B2A ΔE 0.045
- Dark Navy Blue #00022E ΔE 0.049
- Midnight #03012D ΔE 0.050
- Very Dark Blue #000133 ΔE 0.052
- Navy Blue #001146 ΔE 0.055
- Almost Black #070D0D ΔE 0.060
Use #03102A 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.