#003D53
Closest named color: Midnight Green (#073B4C). oklch(33.7% 0.067 230), rgb(0, 61, 83).
Aa
White text reads best on this color (11.71:1).
About this color
#003D53 is a dark, muted teal or cyan. In OKLCH its lightness is 34%, its chroma 0.067 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.013 away. White text reads best on it, at 11.71:1.
| Hue family | Teals and cyans |
| Lightness | dark (34%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.79:1 |
| White text | 11.71:1 |
Values
| HEX | #003D53 |
| RGB | rgb(0, 61, 83) |
| HSL | hsl(196, 100%, 16%) |
| OKLCH | oklch(33.7% 0.067 230) |
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 #003D53 | 11.71:1 | AAA | Lc -100.1 | Preferred for body text |
| Black text on #003D53 | 1.79:1 | Fails | Lc 7.4 | Not readable |
| #003D53 text on white | 11.71:1 | AAA | Lc 96.5 | Preferred for body text |
| #003D53 text on black | 1.79:1 | 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 900.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E1ECF2
oklch(93.7% 0.014 231.2)
-
Step 200
200
#C7DDE8
oklch(88.5% 0.028 229.2)
-
Step 300
300
#A0C7DB
oklch(80.8% 0.05 230.4)
-
Step 400
400
#69AAC9
oklch(70.6% 0.08 230)
-
Step 500
500
#3995BC
oklch(63.2% 0.103 229.8)
-
Step 600
600
#007EA7
oklch(55.5% 0.111 230)
-
Step 700
700
#006A8D
oklch(49.1% 0.098 229.8)
-
Step 800
800
#005774
oklch(42.7% 0.085 229.4)
-
Step 900
900 (this color)
#003D53
oklch(33.7% 0.067 230)
-
Step 950
950
#0C2A37
oklch(26.9% 0.043 229.9)
#003D53 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) | #323C54 | 0.046 |
| Deuteranopia (no green cones) | #273553 | 0.038 |
| Tritanopia (no blue cones) | #004344 | 0.039 |
| Achromatopsia (no color) | #383838 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #003D53
#003D53
oklch(33.7% 0.067 230)
- #522C14
#522C14
oklch(33.7% 0.067 51)
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 #003D53, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.013
- Dark Blue Grey #1F3B4D ΔE 0.022
- Prussian Blue #1D3557 ΔE 0.033
- Charcoal #264653 ΔE 0.045
- Marine Blue #01386A ΔE 0.047
- Dark Grey Blue #29465B ΔE 0.048
- Gunmetal #293241 ΔE 0.049
- Onyx #343A40 ΔE 0.055
Use #003D53 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.