#256963
Closest named color: Dark Aqua (#05696B). oklch(47.6% 0.068 187), rgb(37, 105, 99).
Aa
White text reads best on this color (6.40:1).
About this color
#256963 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 48%, its chroma 0.068 and its hue 187°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.017 away. White text reads best on it, at 6.40:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.27:1 |
| White text | 6.40:1 |
Values
| HEX | #256963 |
| RGB | rgb(37, 105, 99) |
| HSL | hsl(175, 48%, 28%) |
| OKLCH | oklch(47.6% 0.068 187) |
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 #256963 | 6.40:1 | AA | Lc -86.7 | Fine for body text |
| Black text on #256963 | 3.27:1 | AA large text | Lc 22.5 | Dividers and decoration only |
| #256963 text on white | 6.40:1 | AA | Lc 81.6 | Fine for body text |
| #256963 text on black | 3.27:1 | AA large text | Lc -20.3 | 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 700.
-
Step 50
50
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEB
oklch(93.6% 0.01 189.1)
-
Step 200
200
#CCDDDB
oklch(88.4% 0.018 188.3)
-
Step 300
300
#AAC8C4
oklch(80.9% 0.033 186.7)
-
Step 400
400
#7BACA6
oklch(70.8% 0.053 186.6)
-
Step 500
500
#569790
oklch(63.1% 0.068 186.7)
-
Step 600
600
#38817A
oklch(55.5% 0.073 186.8)
-
Step 700
700 (this color)
#256963
oklch(47.6% 0.068 187)
-
Step 800
800
#245954
oklch(42.7% 0.057 186.9)
-
Step 900
900
#234945
oklch(37.6% 0.044 186.6)
-
Step 950
950
#152B29
oklch(27% 0.028 188.1)
#256963 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) | #636363 | 0.072 |
| Deuteranopia (no green cones) | #595C64 | 0.068 |
| Tritanopia (no blue cones) | #006B67 | 0.015 |
| Achromatopsia (no color) | #5F5F5F | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #256963
#256963
oklch(47.6% 0.068 187)
- #7E4C56
#7E4C56
oklch(47.7% 0.069 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 #256963, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.017
- Dark Green Blue #1F6357 ΔE 0.025
- Dark Aquamarine #017371 ΔE 0.032
- Deep Turquoise #017374 ΔE 0.034
- Petrol #005F6A ΔE 0.043
- Bluegreen #017A79 ΔE 0.053
- Deep Aqua #08787F ΔE 0.053
- Slate #516572 ΔE 0.057
Use #256963 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.