#03313C
Closest named color: Midnight Green (#073B4C). oklch(29% 0.05 218.6), rgb(3, 49, 60).
Aa
White text reads best on this color (13.92:1).
About this color
#03313C is a dark, muted teal or cyan. In OKLCH its lightness is 29%, its chroma 0.050 and its hue 219°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.041 away. White text reads best on it, at 13.92:1.
| Hue family | Teals and cyans |
| Lightness | dark (29%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.50:1 |
| White text | 13.92:1 |
Values
| HEX | #03313C |
| RGB | rgb(3, 49, 60) |
| HSL | hsl(192, 90%, 12%) |
| OKLCH | oklch(29% 0.05 218.6) |
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 #03313C | 13.92:1 | AAA | Lc -103.3 | Preferred for body text |
| Black text on #03313C | 1.50:1 | Fails | Lc 0.0 | Not readable |
| #03313C text on white | 13.92:1 | AAA | Lc 100.3 | Preferred for body text |
| #03313C text on black | 1.50:1 | 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
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DEEDF2
oklch(93.6% 0.017 219.7)
-
Step 200
200
#C2DFE8
oklch(88.5% 0.033 218.4)
-
Step 300
300
#95CADB
oklch(80.8% 0.06 219.7)
-
Step 400
400
#52AFC8
oklch(70.7% 0.095 218.1)
-
Step 500
500
#0099B7
oklch(63.1% 0.114 218.3)
-
Step 600
600
#00819B
oklch(55.7% 0.1 218.5)
-
Step 700
700
#006C82
oklch(49.1% 0.088 218.4)
-
Step 800
800
#00596B
oklch(42.8% 0.077 217.7)
-
Step 900
900
#004A5A
oklch(37.8% 0.068 218.5)
-
Step 950
950 (this color)
#03313C
oklch(29% 0.05 218.6)
#03313C 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) | #2A2F3D | 0.043 |
| Deuteranopia (no green cones) | #232A3C | 0.038 |
| Tritanopia (no blue cones) | #003535 | 0.022 |
| Achromatopsia (no color) | #2C2C2C | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03313C
#03313C
oklch(29% 0.05 218.6)
- #402218
#402218
oklch(28.9% 0.05 39.1)
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 #03313C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.041
- Oxford Blue #1B263B ΔE 0.041
- Gunmetal #293241 ΔE 0.043
- Dark #1B2431 ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.048
- Jet #212529 ΔE 0.051
- Dark Blue Grey #1F3B4D ΔE 0.052
- Prussian Blue #1D3557 ΔE 0.057
Use #03313C 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.