#043C45
Closest named color: Midnight Green (#073B4C). oklch(32.8% 0.055 211.8), rgb(4, 60, 69).
Aa
White text reads best on this color (12.08:1).
About this color
#043C45 is a dark, muted teal or cyan. In OKLCH its lightness is 33%, its chroma 0.055 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.014 away. White text reads best on it, at 12.08:1.
| Hue family | Teals and cyans |
| Lightness | dark (33%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.73:1 |
| White text | 12.08:1 |
Values
| HEX | #043C45 |
| RGB | rgb(4, 60, 69) |
| HSL | hsl(188, 89%, 14%) |
| OKLCH | oklch(32.8% 0.055 211.8) |
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 #043C45 | 12.08:1 | AAA | Lc -100.8 | Preferred for body text |
| Black text on #043C45 | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #043C45 text on white | 12.08:1 | AAA | Lc 97.3 | Preferred for body text |
| #043C45 text on black | 1.73:1 | 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
#C9DDE2
oklch(88.4% 0.022 214.4)
-
Step 300
300
#A3C8D0
oklch(80.9% 0.041 212.3)
-
Step 400
400
#6EACB8
oklch(70.7% 0.066 211.1)
-
Step 500
500
#4297A7
oklch(63.1% 0.084 211.8)
-
Step 600
600
#178192
oklch(55.6% 0.091 211.7)
-
Step 700
700
#026D7D
oklch(49.1% 0.085 212.3)
-
Step 800
800
#0C5965
oklch(42.7% 0.07 211.3)
-
Step 900
900 (this color)
#043C45
oklch(32.8% 0.055 211.8)
-
Step 950
950
#0F2B30
oklch(27% 0.035 210.9)
#043C45 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) | #353946 | 0.051 |
| Deuteranopia (no green cones) | #2D3345 | 0.047 |
| Tritanopia (no blue cones) | #00403F | 0.020 |
| Achromatopsia (no color) | #363636 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #043C45
#043C45
oklch(32.8% 0.055 211.8)
- #4D2A23
#4D2A23
oklch(32.8% 0.054 32.2)
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 #043C45, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.014
- Dark Blue Grey #1F3B4D ΔE 0.027
- Gunmetal #293241 ΔE 0.044
- Onyx #343A40 ΔE 0.048
- Prussian Blue #1D3557 ΔE 0.049
- Charcoal #264653 ΔE 0.050
- Dark Teal #014D4E ΔE 0.057
- Space Cadet #2B2D42 ΔE 0.058
Use #043C45 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.