#3B5E61
Closest named color: Dark Green Blue (#1F6357). oklch(45.7% 0.041 202.7), rgb(59, 94, 97).
Aa
White text reads best on this color (7.09:1).
About this color
#3B5E61 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.041 and its hue 203°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.037 away. White text reads best on it, at 7.09:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.95:1 |
| White text | 7.09:1 |
Values
| HEX | #3B5E61 |
| RGB | rgb(59, 94, 97) |
| HSL | hsl(185, 24%, 31%) |
| OKLCH | oklch(45.7% 0.041 202.7) |
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 #3B5E61 | 7.09:1 | AAA | Lc -89.5 | Fine for body text |
| Black text on #3B5E61 | 2.95:1 | Fails | Lc 19.5 | Dividers and decoration only |
| #3B5E61 text on white | 7.09:1 | AAA | Lc 84.5 | Fine for body text |
| #3B5E61 text on black | 2.95:1 | Fails | Lc -17.4 | 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
#E5EBEC
oklch(93.6% 0.007 208.8)
-
Step 200
200
#D0DCDD
oklch(88.6% 0.013 202.9)
-
Step 300
300
#B0C5C7
oklch(80.8% 0.023 203.7)
-
Step 400
400
#85A8AB
oklch(70.7% 0.038 202.8)
-
Step 500
500
#669396
oklch(63.2% 0.049 201.2)
-
Step 600
600
#4C7D81
oklch(55.7% 0.053 202.4)
-
Step 700
700
#3D696D
oklch(49.1% 0.049 203.1)
-
Step 800
800 (this color)
#3B5E61
oklch(45.7% 0.041 202.7)
-
Step 900
900
#2D4749
oklch(37.8% 0.032 202)
-
Step 950
950
#1B292B
oklch(26.9% 0.019 207.1)
#3B5E61 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) | #595B61 | 0.041 |
| Deuteranopia (no green cones) | #525661 | 0.038 |
| Tritanopia (no blue cones) | #2C615F | 0.018 |
| Achromatopsia (no color) | #585858 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #3B5E61
#3B5E61
oklch(45.7% 0.041 202.7)
- #6C4E4D
#6C4E4D
oklch(45.6% 0.041 21)
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 #3B5E61, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.037
- Petrol #005F6A ΔE 0.038
- Dark Aqua #05696B ΔE 0.042
- YInMn Blue #415A77 ΔE 0.044
- Slate #516572 ΔE 0.045
- Dark Slate Gray #2F4F4F ΔE 0.054
- Deep Teal #00555A ΔE 0.056
- Dusty Grape #545775 ΔE 0.057
Use #3B5E61 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.