#004E43
Closest named color: Dark Blue Green (#005249). oklch(38% 0.069 179.1), rgb(0, 78, 67).
Aa
White text reads best on this color (9.67:1).
About this color
#004E43 is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.069 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.015 away. White text reads best on it, at 9.67:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.17:1 |
| White text | 9.67:1 |
Values
| HEX | #004E43 |
| RGB | rgb(0, 78, 67) |
| HSL | hsl(172, 100%, 15%) |
| OKLCH | oklch(38% 0.069 179.1) |
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 #004E43 | 9.67:1 | AAA | Lc -96.2 | Preferred for body text |
| Black text on #004E43 | 2.17:1 | Fails | Lc 12.0 | Not readable |
| #004E43 text on white | 9.67:1 | AAA | Lc 91.9 | Preferred for body text |
| #004E43 text on black | 2.17:1 | Fails | Lc -10.5 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E0EDEA
oklch(93.6% 0.014 180.7)
-
Step 200
200
#C6E0D9
oklch(88.6% 0.029 177.6)
-
Step 300
300
#9DCCC1
oklch(80.9% 0.052 179)
-
Step 400
400
#62B2A2
oklch(70.8% 0.083 179.3)
-
Step 500
500
#259E8B
oklch(63.1% 0.106 179.4)
-
Step 600
600
#008675
oklch(55.5% 0.101 179.7)
-
Step 700
700
#007162
oklch(49.1% 0.09 179.3)
-
Step 800
800
#005D50
oklch(42.8% 0.078 178.9)
-
Step 900
900 (this color)
#004E43
oklch(38% 0.069 179.1)
-
Step 950
950
#072D27
oklch(26.9% 0.043 180.1)
#004E43 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) | #4A4843 | 0.073 |
| Deuteranopia (no green cones) | #414244 | 0.069 |
| Tritanopia (no blue cones) | #004F4B | 0.013 |
| Achromatopsia (no color) | #444444 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004E43
#004E43
oklch(38% 0.069 179.1)
- #603241
#603241
oklch(38.1% 0.069 0)
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 #004E43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.015
- Dark Teal #014D4E ΔE 0.021
- Deep Teal #00555A ΔE 0.040
- Evergreen #05472A ΔE 0.041
- Dark Slate Gray #2F4F4F ΔE 0.042
- Charcoal #264653 ΔE 0.051
- Pine Green #0A481E ΔE 0.054
- Dark Grey Blue #29465B ΔE 0.064
Use #004E43 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.