#2D5E57
Closest named color: Dark Green Blue (#1F6357). oklch(44.5% 0.055 183.4), rgb(45, 94, 87).
Aa
White text reads best on this color (7.36:1).
About this color
#2D5E57 is a dark, muted teal or cyan. In OKLCH its lightness is 45%, its chroma 0.055 and its hue 183°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.018 away. White text reads best on it, at 7.36:1.
| Hue family | Teals and cyans |
| Lightness | dark (45%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.85:1 |
| White text | 7.36:1 |
Values
| HEX | #2D5E57 |
| RGB | rgb(45, 94, 87) |
| HSL | hsl(171, 35%, 27%) |
| OKLCH | oklch(44.5% 0.055 183.4) |
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 #2D5E57 | 7.36:1 | AAA | Lc -90.3 | Preferred for body text |
| Black text on #2D5E57 | 2.85:1 | Fails | Lc 18.6 | Dividers and decoration only |
| #2D5E57 text on white | 7.36:1 | AAA | Lc 85.5 | Fine for body text |
| #2D5E57 text on black | 2.85:1 | Fails | Lc -16.6 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEA
oklch(93.6% 0.01 181.4)
-
Step 200
200
#CDDDDA
oklch(88.5% 0.018 183.5)
-
Step 300
300
#ABC8C3
oklch(81% 0.032 184)
-
Step 400
400
#7DABA4
oklch(70.6% 0.05 184.5)
-
Step 500
500
#5A978D
oklch(63.2% 0.066 182.5)
-
Step 600
600
#3D8177
oklch(55.6% 0.071 182.8)
-
Step 700
700
#2E6D64
oklch(49.1% 0.066 182.8)
-
Step 800
800 (this color)
#2D5E57
oklch(44.5% 0.055 183.4)
-
Step 900
900
#254944
oklch(37.7% 0.043 184.1)
-
Step 950
950
#172B28
oklch(27.1% 0.027 183.8)
#2D5E57 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) | #5A5957 | 0.058 |
| Deuteranopia (no green cones) | #525358 | 0.056 |
| Tritanopia (no blue cones) | #15605C | 0.017 |
| Achromatopsia (no color) | #565656 | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D5E57
#2D5E57
oklch(44.5% 0.055 183.4)
- #6E4751
#6E4751
oklch(44.5% 0.055 2.8)
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 #2D5E57, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.018
- Petrol #005F6A ΔE 0.036
- Dark Aqua #05696B ΔE 0.040
- Deep Teal #00555A ΔE 0.044
- Dark Slate Gray #2F4F4F ΔE 0.047
- Pine #2B5D34 ΔE 0.054
- Dark Blue Green #005249 ΔE 0.054
- Spruce #0A5F38 ΔE 0.058
Use #2D5E57 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.