#215856
Closest named color: Deep Teal (#00555A). oklch(42.4% 0.057 191.9), rgb(33, 88, 86).
Aa
White text reads best on this color (8.09:1).
About this color
#215856 is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.057 and its hue 192°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.022 away. White text reads best on it, at 8.09:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.59:1 |
| White text | 8.09:1 |
Values
| HEX | #215856 |
| RGB | rgb(33, 88, 86) |
| HSL | hsl(178, 45%, 24%) |
| OKLCH | oklch(42.4% 0.057 191.9) |
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 #215856 | 8.09:1 | AAA | Lc -92.5 | Preferred for body text |
| Black text on #215856 | 2.59:1 | Fails | Lc 16.2 | Dividers and decoration only |
| #215856 text on white | 8.09:1 | AAA | Lc 87.8 | Fine for body text |
| #215856 text on black | 2.59:1 | Fails | Lc -14.3 | Not readable |
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
#E3ECEB
oklch(93.6% 0.01 189.1)
-
Step 200
200
#CCDDDC
oklch(88.4% 0.018 192.6)
-
Step 300
300
#A9C8C6
oklch(80.9% 0.033 191.7)
-
Step 400
400
#79ACA9
oklch(70.8% 0.054 191.4)
-
Step 500
500
#549794
oklch(63.1% 0.069 191.8)
-
Step 600
600
#35817E
oklch(55.5% 0.075 191.7)
-
Step 700
700
#276D6B
oklch(49.1% 0.069 192.5)
-
Step 800
800 (this color)
#215856
oklch(42.4% 0.057 191.9)
-
Step 900
900
#224948
oklch(37.7% 0.044 193.2)
-
Step 950
950
#152B2A
oklch(27% 0.028 191.9)
#215856 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) | #535456 | 0.061 |
| Deuteranopia (no green cones) | #4A4D56 | 0.057 |
| Tritanopia (no blue cones) | #005A57 | 0.015 |
| Achromatopsia (no color) | #505050 | 0.058 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #215856
#215856
oklch(42.4% 0.057 191.9)
- #6A4146
#6A4146
oklch(42.5% 0.057 11.9)
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 #215856, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.022
- Dark Slate Gray #2F4F4F ΔE 0.029
- Petrol #005F6A ΔE 0.034
- Dark Blue Green #005249 ΔE 0.034
- Dark Green Blue #1F6357 ΔE 0.036
- Dark Teal #014D4E ΔE 0.043
- Dark Aqua #05696B ΔE 0.054
- Charcoal #264653 ΔE 0.058
Use #215856 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.