#2A585C
Closest named color: Deep Teal (#00555A). oklch(43% 0.051 202.9), rgb(42, 88, 92).
Aa
White text reads best on this color (7.92:1).
About this color
#2A585C is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.051 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.028 away. White text reads best on it, at 7.92:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.64:1 |
| White text | 7.92:1 |
Values
| HEX | #2A585C |
| RGB | rgb(42, 88, 92) |
| HSL | hsl(185, 37%, 26%) |
| OKLCH | oklch(43% 0.051 202.9) |
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 #2A585C | 7.92:1 | AAA | Lc -92.1 | Preferred for body text |
| Black text on #2A585C | 2.64:1 | Fails | Lc 16.6 | Dividers and decoration only |
| #2A585C text on white | 7.92:1 | AAA | Lc 87.4 | Fine for body text |
| #2A585C text on black | 2.64:1 | Fails | Lc -14.8 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E4ECEC
oklch(93.7% 0.009 197)
-
Step 200
200
#CDDDDE
oklch(88.6% 0.017 201.4)
-
Step 300
300
#ABC7C9
oklch(81% 0.03 201.9)
-
Step 400
400
#7EAAAE
oklch(70.8% 0.048 203.1)
-
Step 500
500
#5B959A
oklch(63.2% 0.061 202.8)
-
Step 600
600
#3F7F84
oklch(55.6% 0.066 202.2)
-
Step 700
700
#306B70
oklch(49.1% 0.062 202.8)
-
Step 800
800 (this color)
#2A585C
oklch(43% 0.051 202.9)
-
Step 900
900
#26484B
oklch(37.7% 0.04 203)
-
Step 950
950
#172A2C
oklch(27% 0.025 204.3)
#2A585C 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) | #52555C | 0.051 |
| Deuteranopia (no green cones) | #4A4F5C | 0.046 |
| Tritanopia (no blue cones) | #085B59 | 0.023 |
| Achromatopsia (no color) | #515151 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A585C
#2A585C
oklch(43% 0.051 202.9)
- #694543
#694543
oklch(43.1% 0.05 22.9)
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 #2A585C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.028
- Petrol #005F6A ΔE 0.030
- Dark Slate Gray #2F4F4F ΔE 0.030
- Dark Green Blue #1F6357 ΔE 0.040
- Dark Blue Green #005249 ΔE 0.046
- Dark Teal #014D4E ΔE 0.051
- Dark Aqua #05696B ΔE 0.052
- YInMn Blue #415A77 ΔE 0.054
Use #2A585C 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.