#2D5C55
Closest named color: Dark Green Blue (#1F6357). oklch(43.9% 0.053 183), rgb(45, 92, 85).
Aa
White text reads best on this color (7.57:1).
About this color
#2D5C55 is a dark, muted teal or cyan. In OKLCH its lightness is 44%, its chroma 0.053 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.023 away. White text reads best on it, at 7.57:1.
| Hue family | Teals and cyans |
| Lightness | dark (44%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.77:1 |
| White text | 7.57:1 |
Values
| HEX | #2D5C55 |
| RGB | rgb(45, 92, 85) |
| HSL | hsl(171, 34%, 27%) |
| OKLCH | oklch(43.9% 0.053 183) |
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 #2D5C55 | 7.57:1 | AAA | Lc -91.0 | Preferred for body text |
| Black text on #2D5C55 | 2.77:1 | Fails | Lc 17.8 | Dividers and decoration only |
| #2D5C55 text on white | 7.57:1 | AAA | Lc 86.2 | Fine for body text |
| #2D5C55 text on black | 2.77:1 | Fails | Lc -15.9 | 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
#E4ECEA
oklch(93.6% 0.009 179.6)
-
Step 200
200
#CDDDDA
oklch(88.5% 0.018 183.5)
-
Step 300
300
#ACC8C2
oklch(81% 0.031 181.1)
-
Step 400
400
#7EABA3
oklch(70.6% 0.05 182.7)
-
Step 500
500
#5C968D
oklch(63.1% 0.063 183.4)
-
Step 600
600
#3F8177
oklch(55.7% 0.07 182.6)
-
Step 700
700
#316D64
oklch(49.2% 0.064 182.5)
-
Step 800
800 (this color)
#2D5C55
oklch(43.9% 0.053 183)
-
Step 900
900
#274944
oklch(37.8% 0.041 183.6)
-
Step 950
950
#172B28
oklch(27.1% 0.027 183.8)
#2D5C55 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) | #585755 | 0.056 |
| Deuteranopia (no green cones) | #505256 | 0.052 |
| Tritanopia (no blue cones) | #175E5A | 0.016 |
| Achromatopsia (no color) | #545454 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D5C55
#2D5C55
oklch(43.9% 0.053 183)
- #6B464F
#6B464F
oklch(43.9% 0.052 3.5)
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 #2D5C55, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.023
- Petrol #005F6A ΔE 0.037
- Deep Teal #00555A ΔE 0.040
- Dark Slate Gray #2F4F4F ΔE 0.041
- Dark Aqua #05696B ΔE 0.046
- Dark Blue Green #005249 ΔE 0.049
- Pine #2B5D34 ΔE 0.053
- Spruce #0A5F38 ΔE 0.058
Use #2D5C55 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.