#043A38
Closest named color: Midnight Green (#073B4C). oklch(31.6% 0.052 190.9), rgb(4, 58, 56).
Aa
White text reads best on this color (12.59:1).
About this color
#043A38 is a dark, muted teal or cyan. In OKLCH its lightness is 32%, its chroma 0.052 and its hue 191°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.036 away. White text reads best on it, at 12.59:1.
| Hue family | Teals and cyans |
| Lightness | dark (32%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.66:1 |
| White text | 12.59:1 |
Values
| HEX | #043A38 |
| RGB | rgb(4, 58, 56) |
| HSL | hsl(178, 87%, 12%) |
| OKLCH | oklch(31.6% 0.052 190.9) |
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 #043A38 | 12.59:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #043A38 | 1.66:1 | Fails | Lc 0.0 | Not readable |
| #043A38 text on white | 12.59:1 | AAA | Lc 98.2 | Preferred for body text |
| #043A38 text on black | 1.66:1 | 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
#F0F7F7
oklch(97.1% 0.007 197)
-
Step 100
100
#DDEEED
oklch(93.6% 0.018 192.6)
-
Step 200
200
#C0E1DE
oklch(88.5% 0.035 189.8)
-
Step 300
300
#92CECA
oklch(80.9% 0.062 190.8)
-
Step 400
400
#47B4AF
oklch(70.7% 0.099 190.9)
-
Step 500
500
#009E99
oklch(63.1% 0.109 190.8)
-
Step 600
600
#008581
oklch(55.7% 0.096 191.1)
-
Step 700
700
#00706C
oklch(49.2% 0.085 190.4)
-
Step 800
800
#005B59
oklch(42.6% 0.073 192.2)
-
Step 900
900
#004C4A
oklch(37.6% 0.065 191.7)
-
Step 950
950 (this color)
#043A38
oklch(31.6% 0.052 190.9)
#043A38 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) | #363638 | 0.056 |
| Deuteranopia (no green cones) | #2E3138 | 0.051 |
| Tritanopia (no blue cones) | #003C39 | 0.007 |
| Achromatopsia (no color) | #333333 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #043A38
#043A38
oklch(31.6% 0.052 190.9)
- #48262B
#48262B
oklch(31.5% 0.052 11)
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 #043A38, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.036
- Dark Blue Grey #1F3B4D ΔE 0.046
- Gunmetal #293241 ΔE 0.050
- Pakistan Green #283618 ΔE 0.054
- Onyx #343A40 ΔE 0.055
- Evergreen #05472A ΔE 0.059
- Space Cadet #2B2D42 ΔE 0.065
- Charcoal #264653 ΔE 0.067
Use #043A38 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.