#043B3E
Closest named color: Midnight Green (#073B4C). oklch(32.1% 0.052 200.7), rgb(4, 59, 62).
Aa
White text reads best on this color (12.35:1).
About this color
#043B3E is a dark, muted teal or cyan. In OKLCH its lightness is 32%, its chroma 0.052 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.026 away. White text reads best on it, at 12.35:1.
| Hue family | Teals and cyans |
| Lightness | dark (32%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.70:1 |
| White text | 12.35:1 |
Values
| HEX | #043B3E |
| RGB | rgb(4, 59, 62) |
| HSL | hsl(183, 88%, 13%) |
| OKLCH | oklch(32.1% 0.052 200.7) |
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 #043B3E | 12.35:1 | AAA | Lc -101.3 | Preferred for body text |
| Black text on #043B3E | 1.70:1 | Fails | Lc 0.0 | Not readable |
| #043B3E text on white | 12.35:1 | AAA | Lc 97.8 | Preferred for body text |
| #043B3E text on black | 1.70:1 | 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
#EFF7F8
oklch(97% 0.009 205.9)
-
Step 100
100
#DDEEEF
oklch(93.7% 0.018 201.1)
-
Step 200
200
#C0E0E2
oklch(88.4% 0.034 201.2)
-
Step 300
300
#90CDD1
oklch(80.8% 0.062 201.1)
-
Step 400
400
#44B3BA
oklch(70.7% 0.099 201.1)
-
Step 500
500
#009CA4
oklch(63% 0.107 201.2)
-
Step 600
600
#00838A
oklch(55.5% 0.094 201.4)
-
Step 700
700
#006E74
oklch(49% 0.083 201.4)
-
Step 800
800
#005B5F
oklch(42.8% 0.073 200)
-
Step 900
900
#004B4F
oklch(37.5% 0.064 200.9)
-
Step 950
950 (this color)
#043B3E
oklch(32.1% 0.052 200.7)
#043B3E 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) | #36383E | 0.054 |
| Deuteranopia (no green cones) | #2E323E | 0.050 |
| Tritanopia (no blue cones) | #003E3C | 0.012 |
| Achromatopsia (no color) | #353535 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #043B3E
#043B3E
oklch(32.1% 0.052 200.7)
- #4B2828
#4B2828
oklch(32.3% 0.053 20.4)
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 #043B3E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.026
- Dark Blue Grey #1F3B4D ΔE 0.037
- Gunmetal #293241 ΔE 0.046
- Onyx #343A40 ΔE 0.051
- Charcoal #264653 ΔE 0.059
- Prussian Blue #1D3557 ΔE 0.059
- Space Cadet #2B2D42 ΔE 0.061
- Dark Teal #014D4E ΔE 0.061
Use #043B3E 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.