#004D43
Closest named color: Dark Blue Green (#005249). oklch(37.7% 0.068 180.3), rgb(0, 77, 67).
Aa
White text reads best on this color (9.80:1).
About this color
#004D43 is a dark, muted teal or cyan. In OKLCH its lightness is 38%, its chroma 0.068 and its hue 180°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.017 away. White text reads best on it, at 9.80:1.
| Hue family | Teals and cyans |
| Lightness | dark (38%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.14:1 |
| White text | 9.80:1 |
Values
| HEX | #004D43 |
| RGB | rgb(0, 77, 67) |
| HSL | hsl(172, 100%, 15%) |
| OKLCH | oklch(37.7% 0.068 180.3) |
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 #004D43 | 9.80:1 | AAA | Lc -96.5 | Preferred for body text |
| Black text on #004D43 | 2.14:1 | Fails | Lc 11.7 | Not readable |
| #004D43 text on white | 9.80:1 | AAA | Lc 92.3 | Preferred for body text |
| #004D43 text on black | 2.14:1 | Fails | Lc -10.2 | 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
#C6E0DA
oklch(88.6% 0.029 180.2)
-
Step 300
300
#9DCCC2
oklch(80.9% 0.051 180.4)
-
Step 400
400
#62B2A3
oklch(70.8% 0.082 180.3)
-
Step 500
500
#279E8C
oklch(63.1% 0.105 180.1)
-
Step 600
600
#008676
oklch(55.6% 0.1 180.5)
-
Step 700
700
#007163
oklch(49.2% 0.089 180.3)
-
Step 800
800
#005C51
oklch(42.6% 0.077 181.1)
-
Step 900
900 (this color)
#004D43
oklch(37.7% 0.068 180.3)
-
Step 950
950
#072D27
oklch(26.9% 0.043 180.1)
#004D43 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) | #494843 | 0.072 |
| Deuteranopia (no green cones) | #404144 | 0.068 |
| Tritanopia (no blue cones) | #004F4A | 0.012 |
| Achromatopsia (no color) | #444444 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004D43
#004D43
oklch(37.7% 0.068 180.3)
- #5F3140
#5F3140
oklch(37.7% 0.069 0.1)
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 #004D43, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.017
- Dark Teal #014D4E ΔE 0.019
- Evergreen #05472A ΔE 0.040
- Deep Teal #00555A ΔE 0.041
- Dark Slate Gray #2F4F4F ΔE 0.043
- Charcoal #264653 ΔE 0.049
- Pine Green #0A481E ΔE 0.055
- Dark Grey Blue #29465B ΔE 0.062
Use #004D43 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.