#043D45
Closest named color: Midnight Green (#073B4C). oklch(33.1% 0.055 209.8), rgb(4, 61, 69).
Aa
White text reads best on this color (11.94:1).
About this color
#043D45 is a dark, muted teal or cyan. In OKLCH its lightness is 33%, its chroma 0.055 and its hue 210°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.016 away. White text reads best on it, at 11.94:1.
| Hue family | Teals and cyans |
| Lightness | dark (33%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.75:1 |
| White text | 11.94:1 |
Values
| HEX | #043D45 |
| RGB | rgb(4, 61, 69) |
| HSL | hsl(187, 89%, 14%) |
| OKLCH | oklch(33.1% 0.055 209.8) |
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 #043D45 | 11.94:1 | AAA | Lc -100.6 | Preferred for body text |
| Black text on #043D45 | 1.75:1 | Fails | Lc 0.0 | Not readable |
| #043D45 text on white | 11.94:1 | AAA | Lc 97.0 | Preferred for body text |
| #043D45 text on black | 1.75:1 | 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
#F1F6F7
oklch(97% 0.005 211)
-
Step 100
100
#E1ECEE
oklch(93.5% 0.012 209.8)
-
Step 200
200
#C9DEE1
oklch(88.6% 0.023 207.1)
-
Step 300
300
#A3C8CF
oklch(80.8% 0.041 210.4)
-
Step 400
400
#6EACB7
oklch(70.6% 0.066 209.9)
-
Step 500
500
#4197A5
oklch(63% 0.084 209.7)
-
Step 600
600
#148291
oklch(55.7% 0.092 209.6)
-
Step 700
700
#006D7B
oklch(49% 0.085 210.2)
-
Step 800
800
#0A5964
oklch(42.6% 0.071 209.9)
-
Step 900
900 (this color)
#043D45
oklch(33.1% 0.055 209.8)
-
Step 950
950
#0F2B30
oklch(27% 0.035 210.9)
#043D45 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) | #363A45 | 0.052 |
| Deuteranopia (no green cones) | #2E3445 | 0.048 |
| Tritanopia (no blue cones) | #00413F | 0.020 |
| Achromatopsia (no color) | #373737 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #043D45
#043D45
oklch(33.1% 0.055 209.8)
- #4E2A24
#4E2A24
oklch(33% 0.055 30.4)
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 #043D45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.016
- Dark Blue Grey #1F3B4D ΔE 0.028
- Gunmetal #293241 ΔE 0.046
- Onyx #343A40 ΔE 0.048
- Charcoal #264653 ΔE 0.048
- Prussian Blue #1D3557 ΔE 0.051
- Dark Teal #014D4E ΔE 0.053
- Dark Grey Blue #29465B ΔE 0.058
Use #043D45 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.