#043F31
Closest named color: Evergreen (#05472A). oklch(32.9% 0.062 171.5), rgb(4, 63, 49).
Aa
White text reads best on this color (11.92:1).
About this color
#043F31 is a dark, muted teal or cyan. In OKLCH its lightness is 33%, its chroma 0.062 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Evergreen (#05472A), ΔE 0.034 away. White text reads best on it, at 11.92:1.
| Hue family | Teals and cyans |
| Lightness | dark (33%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Evergreen (#05472A) |
| Black text | 1.76:1 |
| White text | 11.92:1 |
Values
| HEX | #043F31 |
| RGB | rgb(4, 63, 49) |
| HSL | hsl(166, 88%, 13%) |
| OKLCH | oklch(32.9% 0.062 171.5) |
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 #043F31 | 11.92:1 | AAA | Lc -100.6 | Preferred for body text |
| Black text on #043F31 | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #043F31 text on white | 11.92:1 | AAA | Lc 97.0 | Preferred for body text |
| #043F31 text on black | 1.76:1 | 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
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E2EDE9
oklch(93.7% 0.013 172.4)
-
Step 200
200
#C9DFD7
oklch(88.5% 0.026 171.9)
-
Step 300
300
#A3CBBD
oklch(80.9% 0.047 171.8)
-
Step 400
400
#6FB09B
oklch(70.7% 0.074 171.6)
-
Step 500
500
#439C82
oklch(63.1% 0.095 171.2)
-
Step 600
600
#16866C
oklch(55.5% 0.102 172)
-
Step 700
700
#00725A
oklch(49.2% 0.096 171.5)
-
Step 800
800
#0C5D4A
oklch(42.8% 0.079 171.8)
-
Step 900
900 (this color)
#043F31
oklch(32.9% 0.062 171.5)
-
Step 950
950
#0F2D24
oklch(27.1% 0.04 170.9)
#043F31 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) | #3D3A30 | 0.064 |
| Deuteranopia (no green cones) | #353532 | 0.060 |
| Tritanopia (no blue cones) | #00403B | 0.017 |
| Achromatopsia (no color) | #373737 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #043F31
#043F31
oklch(32.9% 0.062 171.5)
- #4D2739
#4D2739
oklch(33% 0.062 351.2)
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 #043F31, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Evergreen #05472A ΔE 0.034
- Pakistan Green #283618 ΔE 0.045
- Pine Green #0A481E ΔE 0.049
- Midnight Green #073B4C ΔE 0.055
- Hunter Green #0B4008 ΔE 0.055
- Dark Teal #014D4E ΔE 0.059
- Forrest Green #154406 ΔE 0.061
- Dark Blue Grey #1F3B4D ΔE 0.062
Use #043F31 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.