#256161
Closest named color: Dark Green Blue (#1F6357). oklch(45.4% 0.061 195.2), rgb(37, 97, 97).
Aa
White text reads best on this color (7.09:1).
About this color
#256161 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 45%, its chroma 0.061 and its hue 195°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Green Blue (#1F6357), ΔE 0.021 away. White text reads best on it, at 7.09:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (45%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Dark Green Blue (#1F6357) |
| Black text | 2.96:1 |
| White text | 7.09:1 |
Values
| HEX | #256161 |
| RGB | rgb(37, 97, 97) |
| HSL | hsl(180, 45%, 26%) |
| OKLCH | oklch(45.4% 0.061 195.2) |
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 #256161 | 7.09:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #256161 | 2.96:1 | Fails | Lc 19.6 | Dividers and decoration only |
| #256161 text on white | 7.09:1 | AAA | Lc 84.4 | Fine for body text |
| #256161 text on black | 2.96:1 | Fails | Lc -17.6 | 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
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CBDDDD
oklch(88.4% 0.019 196.8)
-
Step 300
300
#A7C8C8
oklch(80.9% 0.035 196.5)
-
Step 400
400
#76ACAC
oklch(70.7% 0.057 195.9)
-
Step 500
500
#4E9797
oklch(63% 0.073 195.5)
-
Step 600
600
#2D8282
oklch(55.7% 0.08 195.1)
-
Step 700
700
#1E6E6E
oklch(49.2% 0.074 195)
-
Step 800
800 (this color)
#256161
oklch(45.4% 0.061 195.2)
-
Step 900
900
#1E4A49
oklch(37.8% 0.048 193.3)
-
Step 950
950
#132B2B
oklch(27% 0.03 195.5)
#256161 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) | #5B5C61 | 0.064 |
| Deuteranopia (no green cones) | #515561 | 0.060 |
| Tritanopia (no blue cones) | #006461 | 0.018 |
| Achromatopsia (no color) | #585858 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #256161
#256161
oklch(45.4% 0.061 195.2)
- #75484B
#75484B
oklch(45.4% 0.062 15.5)
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 #256161, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Green Blue #1F6357 ΔE 0.021
- Petrol #005F6A ΔE 0.024
- Dark Aqua #05696B ΔE 0.026
- Deep Teal #00555A ΔE 0.046
- Dark Aquamarine #017371 ΔE 0.054
- Deep Turquoise #017374 ΔE 0.055
- Dark Slate Gray #2F4F4F ΔE 0.056
- YInMn Blue #415A77 ΔE 0.057
Use #256161 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.