#03333E
Closest named color: Midnight Green (#073B4C). oklch(29.7% 0.051 217.9), rgb(3, 51, 62).
Aa
White text reads best on this color (13.57:1).
About this color
#03333E is a dark, muted teal or cyan. In OKLCH its lightness is 30%, its chroma 0.051 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.034 away. White text reads best on it, at 13.57:1.
| Hue family | Teals and cyans |
| Lightness | dark (30%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.54:1 |
| White text | 13.57:1 |
Values
| HEX | #03333E |
| RGB | rgb(3, 51, 62) |
| HSL | hsl(191, 91%, 13%) |
| OKLCH | oklch(29.7% 0.051 217.9) |
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 #03333E | 13.57:1 | AAA | Lc -102.9 | Preferred for body text |
| Black text on #03333E | 1.54:1 | Fails | Lc 0.0 | Not readable |
| #03333E text on white | 13.57:1 | AAA | Lc 99.8 | Preferred for body text |
| #03333E text on black | 1.54:1 | 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
#C1DFE8
oklch(88.5% 0.034 217.8)
-
Step 300
300
#94CBDB
oklch(81% 0.061 217.7)
-
Step 400
400
#4FAFC9
oklch(70.7% 0.097 218.4)
-
Step 500
500
#0099B7
oklch(63.1% 0.114 218.3)
-
Step 600
600
#00819A
oklch(55.7% 0.1 217.7)
-
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
#004A59
oklch(37.7% 0.067 217.2)
-
Step 950
950 (this color)
#03333E
oklch(29.7% 0.051 217.9)
#03333E 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) | #2C313F | 0.044 |
| Deuteranopia (no green cones) | #242C3E | 0.038 |
| Tritanopia (no blue cones) | #003736 | 0.024 |
| Achromatopsia (no color) | #2E2E2E | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #03333E
#03333E
oklch(29.7% 0.051 217.9)
- #43231A
#43231A
oklch(29.7% 0.052 36.6)
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 #03333E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.034
- Gunmetal #293241 ΔE 0.040
- Dark Blue Grey #1F3B4D ΔE 0.045
- Oxford Blue #1B263B ΔE 0.046
- Space Cadet #2B2D42 ΔE 0.048
- Dark #1B2431 ΔE 0.052
- Prussian Blue #1D3557 ΔE 0.053
- Jet #212529 ΔE 0.056
Use #03333E 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.