#256164
Closest named color: Petrol (#005F6A). oklch(45.5% 0.061 199.8), rgb(37, 97, 100).
Aa
White text reads best on this color (7.06:1).
About this color
#256164 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 46%, its chroma 0.061 and its hue 200°. Its hue sits on the cool side of the wheel. The nearest named color is Petrol (#005F6A), ΔE 0.021 away. White text reads best on it, at 7.06:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.061) |
| Temperature | cool |
| Nearest name | Petrol (#005F6A) |
| Black text | 2.97:1 |
| White text | 7.06:1 |
Values
| HEX | #256164 |
| RGB | rgb(37, 97, 100) |
| HSL | hsl(183, 46%, 27%) |
| OKLCH | oklch(45.5% 0.061 199.8) |
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 #256164 | 7.06:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #256164 | 2.97:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #256164 text on white | 7.06:1 | AAA | Lc 84.3 | Fine for body text |
| #256164 text on black | 2.97:1 | Fails | Lc -17.7 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E2ECEC
oklch(93.6% 0.011 197)
-
Step 200
200
#CBDDDE
oklch(88.4% 0.019 200.8)
-
Step 300
300
#A7C8CA
oklch(80.9% 0.035 201)
-
Step 400
400
#75ACAF
oklch(70.7% 0.058 200.3)
-
Step 500
500
#4E979B
oklch(63.1% 0.073 200.2)
-
Step 600
600
#2C8185
oklch(55.5% 0.08 199.6)
-
Step 700
700
#1D6D71
oklch(49% 0.074 200)
-
Step 800
800 (this color)
#256164
oklch(45.5% 0.061 199.8)
-
Step 900
900
#1E494B
oklch(37.6% 0.047 199.4)
-
Step 950
950
#132B2C
oklch(27% 0.03 199.1)
#256164 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) | #5A5D64 | 0.062 |
| Deuteranopia (no green cones) | #505564 | 0.058 |
| Tritanopia (no blue cones) | #006462 | 0.019 |
| Achromatopsia (no color) | #585858 | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #256164
#256164
oklch(45.5% 0.061 199.8)
- #754949
#754949
oklch(45.6% 0.06 19.7)
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 #256164, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Petrol #005F6A ΔE 0.021
- Dark Green Blue #1F6357 ΔE 0.025
- Dark Aqua #05696B ΔE 0.025
- Deep Teal #00555A ΔE 0.047
- YInMn Blue #415A77 ΔE 0.053
- Dark Aquamarine #017371 ΔE 0.054
- Deep Turquoise #017374 ΔE 0.054
- Slate #516572 ΔE 0.057
Use #256164 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.