#2B595B
Closest named color: Petrol (#005F6A). oklch(43.2% 0.05 199.2), rgb(43, 89, 91).
Aa
White text reads best on this color (7.82:1).
About this color
#2B595B is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.050 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.030 away. White text reads best on it, at 7.82:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.68:1 |
| White text | 7.82:1 |
Values
| HEX | #2B595B |
| RGB | rgb(43, 89, 91) |
| HSL | hsl(183, 36%, 26%) |
| OKLCH | oklch(43.2% 0.05 199.2) |
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 #2B595B | 7.82:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #2B595B | 2.68:1 | Fails | Lc 17.0 | Dividers and decoration only |
| #2B595B text on white | 7.82:1 | AAA | Lc 87.0 | Fine for body text |
| #2B595B text on black | 2.68:1 | Fails | Lc -15.1 | Dividers and decoration only |
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
#F3F6F6
oklch(97.1% 0.003 197.1)
-
Step 100
100
#E4ECEC
oklch(93.7% 0.009 197)
-
Step 200
200
#CDDDDD
oklch(88.6% 0.017 196.8)
-
Step 300
300
#ABC7C8
oklch(80.9% 0.03 199.2)
-
Step 400
400
#7EAAAC
oklch(70.7% 0.047 199.6)
-
Step 500
500
#5B9597
oklch(63.1% 0.061 198.5)
-
Step 600
600
#3F7F82
oklch(55.6% 0.066 199.5)
-
Step 700
700
#316B6E
oklch(49% 0.061 199.9)
-
Step 800
800 (this color)
#2B595B
oklch(43.2% 0.05 199.2)
-
Step 900
900
#264849
oklch(37.6% 0.04 198.1)
-
Step 950
950
#172A2B
oklch(26.9% 0.025 200)
#2B595B 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) | #53555B | 0.051 |
| Deuteranopia (no green cones) | #4B4F5B | 0.048 |
| Tritanopia (no blue cones) | #0D5C59 | 0.022 |
| Achromatopsia (no color) | #525252 | 0.051 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B595B
#2B595B
oklch(43.2% 0.05 199.2)
- #6A4545
#6A4545
oklch(43.2% 0.051 19.4)
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 #2B595B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.030
- Deep Teal #00555A ΔE 0.030
- Dark Slate Gray #2F4F4F ΔE 0.032
- Dark Green Blue #1F6357 ΔE 0.036
- Dark Blue Green #005249 ΔE 0.047
- Dark Aqua #05696B ΔE 0.050
- Dark Teal #014D4E ΔE 0.053
- YInMn Blue #415A77 ΔE 0.056
Use #2B595B 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.