#2D5E5F
Closest named color: Dark Green Blue (#1F6357). oklch(44.8% 0.053 197.2), rgb(45, 94, 95).
Aa
White text reads best on this color (7.29:1).
About this color
#2D5E5F is a dark, muted teal or cyan. In OKLCH its lightness is 45%, its chroma 0.053 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.026 away. White text reads best on it, at 7.29:1.
| Hue family | Teals and cyans |
| Lightness | dark (45%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.87:1 |
| White text | 7.29:1 |
Values
| HEX | #2D5E5F |
| RGB | rgb(45, 94, 95) |
| HSL | hsl(181, 36%, 27%) |
| OKLCH | oklch(44.8% 0.053 197.2) |
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 #2D5E5F | 7.29:1 | AAA | Lc -90.1 | Preferred for body text |
| Black text on #2D5E5F | 2.87:1 | Fails | Lc 18.8 | Dividers and decoration only |
| #2D5E5F text on white | 7.29:1 | AAA | Lc 85.2 | Fine for body text |
| #2D5E5F text on black | 2.87:1 | Fails | Lc -16.8 | 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
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CDDDDD
oklch(88.6% 0.017 196.8)
-
Step 300
300
#AAC7C7
oklch(80.8% 0.031 196.6)
-
Step 400
400
#7CABAB
oklch(70.8% 0.05 196.1)
-
Step 500
500
#599697
oklch(63.2% 0.063 197)
-
Step 600
600
#3C8081
oklch(55.7% 0.069 196.7)
-
Step 700
700
#2D6C6D
oklch(49.1% 0.064 196.7)
-
Step 800
800 (this color)
#2D5E5F
oklch(44.8% 0.053 197.2)
-
Step 900
900
#254849
oklch(37.6% 0.041 198)
-
Step 950
950
#162A2B
oklch(26.9% 0.026 199.8)
#2D5E5F 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) | #585A5F | 0.054 |
| Deuteranopia (no green cones) | #50545F | 0.051 |
| Tritanopia (no blue cones) | #0D615E | 0.021 |
| Achromatopsia (no color) | #565656 | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D5E5F
#2D5E5F
oklch(44.8% 0.053 197.2)
- #6F494A
#6F494A
oklch(44.8% 0.052 17.6)
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 #2D5E5F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.026
- Petrol #005F6A ΔE 0.027
- Dark Aqua #05696B ΔE 0.036
- Deep Teal #00555A ΔE 0.043
- Dark Slate Gray #2F4F4F ΔE 0.048
- YInMn Blue #415A77 ΔE 0.052
- Slate #516572 ΔE 0.058
- Dark Blue Green #005249 ΔE 0.060
Use #2D5E5F 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.