#00403C
Closest named color: Midnight Green (#073B4C). oklch(33.5% 0.058 187.8), rgb(0, 64, 60).
Aa
White text reads best on this color (11.67:1).
About this color
#00403C is a dark, muted teal or cyan. In OKLCH its lightness is 33%, its chroma 0.058 and its hue 188°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.038 away. White text reads best on it, at 11.67:1.
| Hue family | Teals and cyans |
| Lightness | dark (33%) |
| Chroma | muted (0.058) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.79:1 |
| White text | 11.67:1 |
Values
| HEX | #00403C |
| RGB | rgb(0, 64, 60) |
| HSL | hsl(176, 100%, 13%) |
| OKLCH | oklch(33.5% 0.058 187.8) |
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 #00403C | 11.67:1 | AAA | Lc -100.1 | Preferred for body text |
| Black text on #00403C | 1.79:1 | Fails | Lc 7.5 | Not readable |
| #00403C text on white | 11.67:1 | AAA | Lc 96.4 | Preferred for body text |
| #00403C 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEB
oklch(93.7% 0.013 185.1)
-
Step 200
200
#C8DFDC
oklch(88.6% 0.025 187.3)
-
Step 300
300
#A1CAC6
oklch(80.8% 0.044 189)
-
Step 400
400
#6BAFA8
oklch(70.7% 0.07 187.4)
-
Step 500
500
#3C9B93
oklch(63.1% 0.089 187.5)
-
Step 600
600
#00857E
oklch(55.6% 0.097 188.3)
-
Step 700
700
#007069
oklch(49.1% 0.086 187.3)
-
Step 800
800
#005C56
oklch(42.8% 0.075 187.1)
-
Step 900
900 (this color)
#00403C
oklch(33.5% 0.058 187.8)
-
Step 950
950
#0D2C2A
oklch(26.9% 0.037 189.4)
#00403C 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) | #3C3C3C | 0.062 |
| Deuteranopia (no green cones) | #34363D | 0.059 |
| Tritanopia (no blue cones) | #00423F | 0.008 |
| Achromatopsia (no color) | #383838 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #00403C
#00403C
oklch(33.5% 0.058 187.8)
- #502931
#502931
oklch(33.5% 0.059 7.6)
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 #00403C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.038
- Evergreen #05472A ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.046
- Dark Teal #014D4E ΔE 0.048
- Onyx #343A40 ΔE 0.054
- Charcoal #264653 ΔE 0.054
- Pakistan Green #283618 ΔE 0.059
- Gunmetal #293241 ΔE 0.060
Use #00403C 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.