#03031D
Closest named color: Midnight (#03012D). oklch(12.5% 0.059 273.9), rgb(3, 3, 29).
Aa
White text reads best on this color (20.29:1).
About this color
#03031D is a very dark, muted blue. In OKLCH its lightness is 13%, its chroma 0.059 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight (#03012D), ΔE 0.034 away. White text reads best on it, at 20.29:1.
| Hue family | Blues |
| Lightness | very dark (13%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Midnight (#03012D) |
| Black text | 1.03:1 |
| White text | 20.29:1 |
Values
| HEX | #03031D |
| RGB | rgb(3, 3, 29) |
| HSL | hsl(240, 81%, 6%) |
| OKLCH | oklch(12.5% 0.059 273.9) |
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 #03031D | 20.29:1 | AAA | Lc -107.7 | Preferred for body text |
| Black text on #03031D | 1.03:1 | Fails | Lc 0.0 | Not readable |
| #03031D text on white | 20.29:1 | AAA | Lc 105.8 | Preferred for body text |
| #03031D text on black | 1.03:1 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F8
oklch(93.5% 0.021 274)
-
Step 200
200
#D1D8F3
oklch(88.5% 0.038 274.1)
-
Step 300
300
#B2BEEE
oklch(80.9% 0.069 273.8)
-
Step 400
400
#8B9BE6
oklch(70.7% 0.111 274)
-
Step 500
500
#7080DE
oklch(63% 0.142 274.3)
-
Step 600
600
#5968CC
oklch(55.6% 0.154 273.9)
-
Step 700
700
#4956B1
oklch(49.1% 0.144 273.8)
-
Step 800
800
#3C478F
oklch(42.8% 0.119 273.8)
-
Step 900
900
#333C72
oklch(37.7% 0.092 274)
-
Step 950
950 (this color)
#03031D
oklch(12.5% 0.059 273.9)
#03031D 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) | #00071E | 0.019 |
| Deuteranopia (no green cones) | #00051C | 0.014 |
| Tritanopia (no blue cones) | #00090E | 0.048 |
| Achromatopsia (no color) | #060606 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03031D
#03031D
oklch(12.5% 0.059 273.9)
- #0A0600
#0A0600
oklch(12.5% 0.026 90.1)
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 #03031D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight #03012D ΔE 0.034
- Dark Navy Blue #00022E ΔE 0.038
- Very Dark Blue #000133 ΔE 0.048
- Dark Navy #000435 ΔE 0.052
- Almost Black #070D0D ΔE 0.063
- Rich Navy #001219 ΔE 0.063
- Night Blue #040348 ΔE 0.090
- Navy Blue #001146 ΔE 0.097
Use #03031D 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.