#2A585E
Closest named color: Deep Teal (#00555A). oklch(43.1% 0.051 206.6), rgb(42, 88, 94).
Aa
White text reads best on this color (7.90:1).
About this color
#2A585E is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.051 and its hue 207°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.029 away. White text reads best on it, at 7.90:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.65:1 |
| White text | 7.90:1 |
Values
| HEX | #2A585E |
| RGB | rgb(42, 88, 94) |
| HSL | hsl(187, 38%, 27%) |
| OKLCH | oklch(43.1% 0.051 206.6) |
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 #2A585E | 7.90:1 | AAA | Lc -92.0 | Preferred for body text |
| Black text on #2A585E | 2.65:1 | Fails | Lc 16.7 | Dividers and decoration only |
| #2A585E text on white | 7.90:1 | AAA | Lc 87.3 | Fine for body text |
| #2A585E text on black | 2.65:1 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E4ECED
oklch(93.7% 0.009 205.9)
-
Step 200
200
#CDDCDF
oklch(88.4% 0.017 211)
-
Step 300
300
#ABC7CA
oklch(81% 0.03 204.5)
-
Step 400
400
#7EAAB0
oklch(70.8% 0.048 206.6)
-
Step 500
500
#5B949C
oklch(63% 0.061 207.1)
-
Step 600
600
#3F7E87
oklch(55.5% 0.066 207.6)
-
Step 700
700
#306B72
oklch(49.2% 0.062 205.8)
-
Step 800
800 (this color)
#2A585E
oklch(43.1% 0.051 206.6)
-
Step 900
900
#26484C
oklch(37.8% 0.04 205.4)
-
Step 950
950
#172A2D
oklch(27% 0.025 208.4)
#2A585E 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) | #51555E | 0.049 |
| Deuteranopia (no green cones) | #494F5E | 0.045 |
| Tritanopia (no blue cones) | #055B5A | 0.025 |
| Achromatopsia (no color) | #515151 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A585E
#2A585E
oklch(43.1% 0.051 206.6)
- #694541
#694541
oklch(43% 0.051 26.4)
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 #2A585E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.029
- Petrol #005F6A ΔE 0.029
- Dark Slate Gray #2F4F4F ΔE 0.032
- Dark Green Blue #1F6357 ΔE 0.041
- Dark Blue Green #005249 ΔE 0.049
- YInMn Blue #415A77 ΔE 0.052
- Dark Aqua #05696B ΔE 0.052
- Dark Teal #014D4E ΔE 0.052
Use #2A585E 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.