#04423B
Closest named color: Evergreen (#05472A). oklch(34.1% 0.059 182.9), rgb(4, 66, 59).
Aa
White text reads best on this color (11.36:1).
About this color
#04423B is a dark, muted teal or cyan. In OKLCH its lightness is 34%, its chroma 0.059 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Evergreen (#05472A), ΔE 0.038 away. White text reads best on it, at 11.36:1.
| Hue family | Teals and cyans |
| Lightness | dark (34%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Evergreen (#05472A) |
| Black text | 1.84:1 |
| White text | 11.36:1 |
Values
| HEX | #04423B |
| RGB | rgb(4, 66, 59) |
| HSL | hsl(173, 89%, 14%) |
| OKLCH | oklch(34.1% 0.059 182.9) |
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 #04423B | 11.36:1 | AAA | Lc -99.6 | Preferred for body text |
| Black text on #04423B | 1.84:1 | Fails | Lc 8.1 | Not readable |
| #04423B text on white | 11.36:1 | AAA | Lc 95.8 | Preferred for body text |
| #04423B text on black | 1.84:1 | 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
#F1F7F6
oklch(97.1% 0.006 185.3)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C8DFDA
oklch(88.5% 0.025 181.2)
-
Step 300
300
#A2CAC3
oklch(80.8% 0.044 183.4)
-
Step 400
400
#6CAFA4
oklch(70.6% 0.07 182.7)
-
Step 500
500
#3D9B8E
oklch(63% 0.09 182.8)
-
Step 600
600
#058678
oklch(55.7% 0.099 182.1)
-
Step 700
700
#007165
oklch(49.2% 0.088 182.2)
-
Step 800
800
#025C53
oklch(42.7% 0.075 183.4)
-
Step 900
900 (this color)
#04423B
oklch(34.1% 0.059 182.9)
-
Step 950
950
#0E2C28
oklch(26.9% 0.036 183.6)
#04423B 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) | #3E3D3B | 0.062 |
| Deuteranopia (no green cones) | #36383C | 0.058 |
| Tritanopia (no blue cones) | #004440 | 0.009 |
| Achromatopsia (no color) | #3A3A3A | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04423B
#04423B
oklch(34.1% 0.059 182.9)
- #512B35
#512B35
oklch(34.2% 0.058 3.7)
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 #04423B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Evergreen #05472A ΔE 0.038
- Dark Teal #014D4E ΔE 0.043
- Midnight Green #073B4C ΔE 0.045
- Dark Blue Grey #1F3B4D ΔE 0.050
- Charcoal #264653 ΔE 0.053
- Dark Blue Green #005249 ΔE 0.054
- Onyx #343A40 ΔE 0.055
- Pine Green #0A481E ΔE 0.056
Use #04423B 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.