#215258
Closest named color: Deep Teal (#00555A). oklch(40.8% 0.053 206.2), rgb(33, 82, 88).
Aa
White text reads best on this color (8.70:1).
About this color
#215258 is a dark, muted teal or cyan. In OKLCH its lightness is 41%, its chroma 0.053 and its hue 206°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.017 away. White text reads best on it, at 8.70:1.
| Hue family | Teals and cyans |
| Lightness | dark (41%) |
| Chroma | muted (0.053) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.41:1 |
| White text | 8.70:1 |
Values
| HEX | #215258 |
| RGB | rgb(33, 82, 88) |
| HSL | hsl(187, 45%, 24%) |
| OKLCH | oklch(40.8% 0.053 206.2) |
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 #215258 | 8.70:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #215258 | 2.41:1 | Fails | Lc 14.3 | Not readable |
| #215258 text on white | 8.70:1 | AAA | Lc 89.7 | Fine for body text |
| #215258 text on black | 2.41:1 | Fails | Lc -12.6 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECED
oklch(93.7% 0.01 204.9)
-
Step 200
200
#CDDDDF
oklch(88.6% 0.017 205.8)
-
Step 300
300
#AAC7CA
oklch(80.9% 0.032 204.2)
-
Step 400
400
#7CAAB0
oklch(70.7% 0.05 206.2)
-
Step 500
500
#59959C
oklch(63.2% 0.063 205.2)
-
Step 600
600
#3C7F87
oklch(55.6% 0.069 205.8)
-
Step 700
700
#2D6B73
oklch(49.1% 0.064 206.8)
-
Step 800
800 (this color)
#215258
oklch(40.8% 0.053 206.2)
-
Step 900
900
#25484C
oklch(37.7% 0.041 205.1)
-
Step 950
950
#162A2D
oklch(26.9% 0.026 207.9)
#215258 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) | #4B4F58 | 0.051 |
| Deuteranopia (no green cones) | #434858 | 0.049 |
| Tritanopia (no blue cones) | #005554 | 0.021 |
| Achromatopsia (no color) | #4B4B4B | 0.053 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #215258
#215258
oklch(40.8% 0.053 206.2)
- #643E3A
#643E3A
oklch(40.7% 0.054 26.3)
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 #215258, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.017
- Dark Slate Gray #2F4F4F ΔE 0.018
- Dark Teal #014D4E ΔE 0.031
- Dark Blue Green #005249 ΔE 0.034
- Charcoal #264653 ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.041
- Petrol #005F6A ΔE 0.043
- Dark Green Blue #1F6357 ΔE 0.057
Use #215258 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.