#215366
Closest named color: Deep Teal (#00555A). oklch(41.7% 0.062 226.2), rgb(33, 83, 102).
Aa
White text reads best on this color (8.42:1).
About this color
#215366 is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.062 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.030 away. White text reads best on it, at 8.42:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.49:1 |
| White text | 8.42:1 |
Values
| HEX | #215366 |
| RGB | rgb(33, 83, 102) |
| HSL | hsl(197, 51%, 26%) |
| OKLCH | oklch(41.7% 0.062 226.2) |
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 #215366 | 8.42:1 | AAA | Lc -93.4 | Preferred for body text |
| Black text on #215366 | 2.49:1 | Fails | Lc 15.2 | Dividers and decoration only |
| #215366 text on white | 8.42:1 | AAA | Lc 88.8 | Fine for body text |
| #215366 text on black | 2.49:1 | Fails | Lc -13.4 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBEF
oklch(93.5% 0.01 228.9)
-
Step 200
200
#CCDCE3
oklch(88.5% 0.02 225.7)
-
Step 300
300
#A9C6D3
oklch(80.9% 0.036 226.7)
-
Step 400
400
#7AA9BC
oklch(70.8% 0.057 224.9)
-
Step 500
500
#5693AC
oklch(63.2% 0.074 226.4)
-
Step 600
600
#387D97
oklch(55.6% 0.08 225.8)
-
Step 700
700
#296981
oklch(49% 0.075 226.2)
-
Step 800
800 (this color)
#215366
oklch(41.7% 0.062 226.2)
-
Step 900
900
#234755
oklch(37.7% 0.048 225.6)
-
Step 950
950
#152A32
oklch(27.1% 0.031 224.6)
#215366 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) | #495167 | 0.047 |
| Deuteranopia (no green cones) | #3F4A66 | 0.041 |
| Tritanopia (no blue cones) | #005959 | 0.038 |
| Achromatopsia (no color) | #4D4D4D | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #215366
#215366
oklch(41.7% 0.062 226.2)
- #68412F
#68412F
oklch(41.6% 0.062 45.4)
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 #215366, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.030
- Dark Slate Gray #2F4F4F ΔE 0.038
- Petrol #005F6A ΔE 0.038
- Dark Grey Blue #29465B ΔE 0.041
- Charcoal #264653 ΔE 0.045
- Deep Sea Blue #015482 ΔE 0.048
- Dark Teal #014D4E ΔE 0.049
- YInMn Blue #415A77 ΔE 0.051
Use #215366 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.