#2F5955
Closest named color: Dark Slate Gray (#2F4F4F). oklch(43.2% 0.048 187.6), rgb(47, 89, 85).
Aa
White text reads best on this color (7.83:1).
About this color
#2F5955 is a dark, muted teal or cyan. In OKLCH its lightness is 43%, its chroma 0.048 and its hue 188°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Slate Gray (#2F4F4F), ΔE 0.031 away. White text reads best on it, at 7.83:1.
| Hue family | Teals and cyans |
| Lightness | dark (43%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Dark Slate Gray (#2F4F4F) |
| Black text | 2.68:1 |
| White text | 7.83:1 |
Values
| HEX | #2F5955 |
| RGB | rgb(47, 89, 85) |
| HSL | hsl(174, 31%, 27%) |
| OKLCH | oklch(43.2% 0.048 187.6) |
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 #2F5955 | 7.83:1 | AAA | Lc -91.8 | Preferred for body text |
| Black text on #2F5955 | 2.68:1 | Fails | Lc 16.9 | Dividers and decoration only |
| #2F5955 text on white | 7.83:1 | AAA | Lc 87.1 | Fine for body text |
| #2F5955 text on black | 2.68:1 | Fails | Lc -15.0 | 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
#E4ECEB
oklch(93.7% 0.009 188.1)
-
Step 200
200
#CEDDDB
oklch(88.6% 0.016 187.3)
-
Step 300
300
#ADC7C4
oklch(80.9% 0.028 188.2)
-
Step 400
400
#81AAA5
oklch(70.7% 0.045 186.9)
-
Step 500
500
#609590
oklch(63.1% 0.057 188.3)
-
Step 600
600
#457F7A
oklch(55.5% 0.062 188.4)
-
Step 700
700
#366B66
oklch(49% 0.057 187.5)
-
Step 800
800 (this color)
#2F5955
oklch(43.2% 0.048 187.6)
-
Step 900
900
#294845
oklch(37.7% 0.037 187.9)
-
Step 950
950
#192A28
oklch(26.9% 0.023 186.7)
#2F5955 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) | #555555 | 0.051 |
| Deuteranopia (no green cones) | #4E5056 | 0.048 |
| Tritanopia (no blue cones) | #1C5B58 | 0.016 |
| Achromatopsia (no color) | #525252 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F5955
#2F5955
oklch(43.2% 0.048 187.6)
- #68454B
#68454B
oklch(43.2% 0.049 8)
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 #2F5955, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Slate Gray #2F4F4F ΔE 0.031
- Dark Green Blue #1F6357 ΔE 0.032
- Deep Teal #00555A ΔE 0.035
- Petrol #005F6A ΔE 0.038
- Dark Blue Green #005249 ΔE 0.045
- Dark Aqua #05696B ΔE 0.053
- Dark Teal #014D4E ΔE 0.054
- Pine #2B5D34 ΔE 0.058
Use #2F5955 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.