#0A4537
Closest named color: Evergreen (#05472A). oklch(35% 0.063 172.3), rgb(10, 69, 55).
Aa
White text reads best on this color (10.94:1).
About this color
#0A4537 is a dark, muted teal or cyan. In OKLCH its lightness is 35%, its chroma 0.063 and its hue 172°. Its hue sits on the cool side of the wheel. The nearest named color is Evergreen (#05472A), ΔE 0.025 away. White text reads best on it, at 10.94:1.
| Hue family | Teals and cyans |
| Lightness | dark (35%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Evergreen (#05472A) |
| Black text | 1.91:1 |
| White text | 10.94:1 |
Values
| HEX | #0A4537 |
| RGB | rgb(10, 69, 55) |
| HSL | hsl(166, 75%, 15%) |
| OKLCH | oklch(35% 0.063 172.3) |
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 #0A4537 | 10.94:1 | AAA | Lc -98.9 | Preferred for body text |
| Black text on #0A4537 | 1.91:1 | Fails | Lc 8.9 | Not readable |
| #0A4537 text on white | 10.94:1 | AAA | Lc 95.0 | Preferred for body text |
| #0A4537 text on black | 1.91:1 | Fails | Lc -7.6 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDE9
oklch(93.6% 0.014 174.2)
-
Step 200
200
#C9DFD7
oklch(88.5% 0.026 171.9)
-
Step 300
300
#A3CBBD
oklch(80.9% 0.047 171.8)
-
Step 400
400
#6DB09B
oklch(70.6% 0.076 172.1)
-
Step 500
500
#409C83
oklch(63% 0.096 172.4)
-
Step 600
600
#0E876D
oklch(55.7% 0.105 172.5)
-
Step 700
700
#00725B
oklch(49.2% 0.095 172.3)
-
Step 800
800
#065D4A
oklch(42.7% 0.081 172.2)
-
Step 900
900 (this color)
#0A4537
oklch(35% 0.063 172.3)
-
Step 950
950
#0E2D24
oklch(27.1% 0.041 171.3)
#0A4537 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) | #424036 | 0.064 |
| Deuteranopia (no green cones) | #3B3A38 | 0.063 |
| Tritanopia (no blue cones) | #004641 | 0.016 |
| Achromatopsia (no color) | #3D3D3D | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #0A4537
#0A4537
oklch(35% 0.063 172.3)
- #532C3E
#532C3E
oklch(35% 0.063 351.7)
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 #0A4537, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Evergreen #05472A ΔE 0.025
- Dark Teal #014D4E ΔE 0.041
- Pine Green #0A481E ΔE 0.043
- Dark Blue Green #005249 ΔE 0.045
- Charcoal #264653 ΔE 0.057
- Pakistan Green #283618 ΔE 0.058
- Midnight Green #073B4C ΔE 0.059
- Forrest Green #154406 ΔE 0.061
Use #0A4537 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.