#00404C
Closest named color: Midnight Green (#073B4C). oklch(34.2% 0.06 215.2), rgb(0, 64, 76).
Aa
White text reads best on this color (11.42:1).
About this color
#00404C is a dark, muted teal or cyan. In OKLCH its lightness is 34%, its chroma 0.060 and its hue 215°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.017 away. White text reads best on it, at 11.42:1.
| Hue family | Teals and cyans |
| Lightness | dark (34%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.83:1 |
| White text | 11.42:1 |
Values
| HEX | #00404C |
| RGB | rgb(0, 64, 76) |
| HSL | hsl(189, 100%, 15%) |
| OKLCH | oklch(34.2% 0.06 215.2) |
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 #00404C | 11.42:1 | AAA | Lc -99.7 | Preferred for body text |
| Black text on #00404C | 1.83:1 | Fails | Lc 8.0 | Not readable |
| #00404C text on white | 11.42:1 | AAA | Lc 95.9 | Preferred for body text |
| #00404C text on black | 1.83:1 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E1ECEF
oklch(93.6% 0.012 215.8)
-
Step 200
200
#C7DEE4
oklch(88.5% 0.026 215.2)
-
Step 300
300
#A0C9D3
oklch(81% 0.046 214.2)
-
Step 400
400
#69ACBD
oklch(70.6% 0.072 215.8)
-
Step 500
500
#3897AD
oklch(63% 0.093 216.1)
-
Step 600
600
#008197
oklch(55.5% 0.098 215.2)
-
Step 700
700
#006D7F
oklch(49.2% 0.087 214.3)
-
Step 800
800
#005969
oklch(42.7% 0.076 215.4)
-
Step 900
900 (this color)
#00404C
oklch(34.2% 0.06 215.2)
-
Step 950
950
#0C2B32
oklch(27% 0.038 215.2)
#00404C 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) | #383E4D | 0.054 |
| Deuteranopia (no green cones) | #2E374C | 0.047 |
| Tritanopia (no blue cones) | #004444 | 0.023 |
| Achromatopsia (no color) | #3A3A3A | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00404C
#00404C
oklch(34.2% 0.06 215.2)
- #532C22
#532C22
oklch(34.1% 0.061 35.3)
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 #00404C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.017
- Dark Blue Grey #1F3B4D ΔE 0.026
- Charcoal #264653 ΔE 0.039
- Dark Teal #014D4E ΔE 0.044
- Dark Grey Blue #29465B ΔE 0.047
- Prussian Blue #1D3557 ΔE 0.049
- Onyx #343A40 ΔE 0.050
- Gunmetal #293241 ΔE 0.052
Use #00404C 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.