#215663
Closest named color: Deep Teal (#00555A). oklch(42.4% 0.059 216.6), rgb(33, 86, 99).
Aa
White text reads best on this color (8.15:1).
About this color
#215663 is a dark, muted teal or cyan. In OKLCH its lightness is 42%, its chroma 0.059 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Teal (#00555A), ΔE 0.024 away. White text reads best on it, at 8.15:1.
| Hue family | Teals and cyans |
| Lightness | dark (42%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Deep Teal (#00555A) |
| Black text | 2.57:1 |
| White text | 8.15:1 |
Values
| HEX | #215663 |
| RGB | rgb(33, 86, 99) |
| HSL | hsl(192, 50%, 26%) |
| OKLCH | oklch(42.4% 0.059 216.6) |
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 #215663 | 8.15:1 | AAA | Lc -92.7 | Preferred for body text |
| Black text on #215663 | 2.57:1 | Fails | Lc 16.0 | Dividers and decoration only |
| #215663 text on white | 8.15:1 | AAA | Lc 88.0 | Fine for body text |
| #215663 text on black | 2.57:1 | Fails | Lc -14.2 | 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
#E3ECEE
oklch(93.7% 0.01 212.5)
-
Step 200
200
#CCDDE1
oklch(88.6% 0.019 213.4)
-
Step 300
300
#A8C7CF
oklch(80.9% 0.035 215.1)
-
Step 400
400
#79AAB7
oklch(70.8% 0.055 216)
-
Step 500
500
#5494A5
oklch(63% 0.07 216.9)
-
Step 600
600
#357E90
oklch(55.5% 0.077 216.7)
-
Step 700
700
#276B7B
oklch(49.2% 0.071 216.2)
-
Step 800
800 (this color)
#215663
oklch(42.4% 0.059 216.6)
-
Step 900
900
#224851
oklch(37.8% 0.046 215.1)
-
Step 950
950
#152A30
oklch(27% 0.029 218.2)
#215663 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) | #4D5364 | 0.052 |
| Deuteranopia (no green cones) | #444C63 | 0.048 |
| Tritanopia (no blue cones) | #005B5A | 0.030 |
| Achromatopsia (no color) | #4F4F4F | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #215663
#215663
oklch(42.4% 0.059 216.6)
- #6A4237
#6A4237
oklch(42.3% 0.059 36.1)
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 #215663, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Teal #00555A ΔE 0.024
- Petrol #005F6A ΔE 0.029
- Dark Slate Gray #2F4F4F ΔE 0.034
- Dark Teal #014D4E ΔE 0.048
- Dark Grey Blue #29465B ΔE 0.049
- Dark Blue Green #005249 ΔE 0.050
- YInMn Blue #415A77 ΔE 0.051
- Charcoal #264653 ΔE 0.051
Use #215663 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.