#043733
Closest named color: Midnight Green (#073B4C). oklch(30.4% 0.051 186.7), rgb(4, 55, 51).
Aa
White text reads best on this color (13.12:1).
About this color
#043733 is a dark, muted teal or cyan. In OKLCH its lightness is 30%, its chroma 0.051 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.045 away. White text reads best on it, at 13.12:1.
| Hue family | Teals and cyans |
| Lightness | dark (30%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.59:1 |
| White text | 13.12:1 |
Values
| HEX | #043733 |
| RGB | rgb(4, 55, 51) |
| HSL | hsl(175, 86%, 12%) |
| OKLCH | oklch(30.4% 0.051 186.7) |
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 #043733 | 13.12:1 | AAA | Lc -102.4 | Preferred for body text |
| Black text on #043733 | 1.59:1 | Fails | Lc 0.0 | Not readable |
| #043733 text on white | 13.12:1 | AAA | Lc 99.1 | Preferred for body text |
| #043733 text on black | 1.59:1 | 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 950.
-
Step 50
50
#F0F7F6
oklch(97.1% 0.008 186.9)
-
Step 100
100
#DEEEEC
oklch(93.7% 0.017 187.9)
-
Step 200
200
#C1E1DD
oklch(88.5% 0.034 187.4)
-
Step 300
300
#94CEC7
oklch(81% 0.06 186.7)
-
Step 400
400
#4DB4AA
oklch(70.7% 0.096 186.6)
-
Step 500
500
#009F94
oklch(63.2% 0.111 186.2)
-
Step 600
600
#00857C
oklch(55.5% 0.097 186.5)
-
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
#004D47
oklch(37.8% 0.066 185.9)
-
Step 950
950 (this color)
#043733
oklch(30.4% 0.051 186.7)
#043733 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) | #333333 | 0.053 |
| Deuteranopia (no green cones) | #2D2E33 | 0.052 |
| Tritanopia (no blue cones) | #003936 | 0.007 |
| Achromatopsia (no color) | #303030 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #043733
#043733
oklch(30.4% 0.051 186.7)
- #44232B
#44232B
oklch(30.3% 0.051 5)
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 #043733, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.045
- Pakistan Green #283618 ΔE 0.050
- Gunmetal #293241 ΔE 0.052
- Dark Blue Grey #1F3B4D ΔE 0.055
- Onyx #343A40 ΔE 0.061
- Jet #212529 ΔE 0.063
- Evergreen #05472A ΔE 0.064
- Space Cadet #2B2D42 ΔE 0.065
Use #043733 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.