#04594D
Closest named color: Dark Blue Green (#005249). oklch(41.6% 0.075 179.3), rgb(4, 89, 77).
Aa
White text reads best on this color (8.26:1).
About this color
#04594D is a dark, moderately saturated teal or cyan. In OKLCH its lightness is 42%, its chroma 0.075 and its hue 179°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Green (#005249), ΔE 0.023 away. White text reads best on it, at 8.26:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Dark Blue Green (#005249) |
| Black text | 2.54:1 |
| White text | 8.26:1 |
Values
| HEX | #04594D |
| RGB | rgb(4, 89, 77) |
| HSL | hsl(172, 91%, 18%) |
| OKLCH | oklch(41.6% 0.075 179.3) |
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 #04594D | 8.26:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #04594D | 2.54:1 | Fails | Lc 15.9 | Dividers and decoration only |
| #04594D text on white | 8.26:1 | AAA | Lc 88.1 | Fine for body text |
| #04594D text on black | 2.54:1 | Fails | Lc -14.1 | 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 800.
-
Step 50
50
#F2F7F5
oklch(97.2% 0.006 170.4)
-
Step 100
100
#E1EDEA
oklch(93.6% 0.013 179.5)
-
Step 200
200
#C9DFD9
oklch(88.6% 0.025 177.6)
-
Step 300
300
#A3CAC1
oklch(80.8% 0.043 179.5)
-
Step 400
400
#6EAFA2
oklch(70.6% 0.07 180.1)
-
Step 500
500
#429B8B
oklch(63.1% 0.089 179.6)
-
Step 600
600
#158575
oklch(55.5% 0.096 180)
-
Step 700
700
#007162
oklch(49.1% 0.09 179.3)
-
Step 800
800 (this color)
#04594D
oklch(41.6% 0.075 179.3)
-
Step 900
900
#164C42
oklch(37.8% 0.059 178.3)
-
Step 950
950
#0F2C27
oklch(26.9% 0.036 180.5)
#04594D 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) | #55534D | 0.079 |
| Deuteranopia (no green cones) | #4B4B4E | 0.076 |
| Tritanopia (no blue cones) | #005B55 | 0.013 |
| Achromatopsia (no color) | #4E4E4E | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #04594D
#04594D
oklch(41.6% 0.075 179.3)
- #6C3A4B
#6C3A4B
oklch(41.6% 0.074 359)
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 #04594D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Green #005249 ΔE 0.023
- Deep Teal #00555A ΔE 0.029
- Dark Green Blue #1F6357 ΔE 0.038
- Dark Teal #014D4E ΔE 0.042
- Dark Slate Gray #2F4F4F ΔE 0.042
- Spruce #0A5F38 ΔE 0.044
- Petrol #005F6A ΔE 0.047
- Pine #2B5D34 ΔE 0.048
Use #04594D 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.