#216778
Closest named color: Dark Aqua (#05696B). oklch(47.8% 0.073 217.3), rgb(33, 103, 120).
Aa
White text reads best on this color (6.41:1).
About this color
#216778 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 48%, its chroma 0.073 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aqua (#05696B), ΔE 0.028 away. White text reads best on it, at 6.41:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (48%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Dark Aqua (#05696B) |
| Black text | 3.27:1 |
| White text | 6.41:1 |
Values
| HEX | #216778 |
| RGB | rgb(33, 103, 120) |
| HSL | hsl(192, 57%, 30%) |
| OKLCH | oklch(47.8% 0.073 217.3) |
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 #216778 | 6.41:1 | AA | Lc -86.7 | Fine for body text |
| Black text on #216778 | 3.27:1 | AA large text | Lc 22.5 | Dividers and decoration only |
| #216778 text on white | 6.41:1 | AA | Lc 81.6 | Fine for body text |
| #216778 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECEE
oklch(93.7% 0.01 212.5)
-
Step 200
200
#CCDDE2
oklch(88.6% 0.02 217.2)
-
Step 300
300
#A8C7D0
oklch(81% 0.036 217.2)
-
Step 400
400
#78AAB8
oklch(70.8% 0.057 217.1)
-
Step 500
500
#5394A6
oklch(63% 0.072 217.8)
-
Step 600
600
#347E91
oklch(55.5% 0.078 217.5)
-
Step 700
700 (this color)
#216778
oklch(47.8% 0.073 217.3)
-
Step 800
800
#215765
oklch(42.7% 0.061 217.8)
-
Step 900
900
#214852
oklch(37.8% 0.047 216.7)
-
Step 950
950
#142A30
oklch(27% 0.03 217.4)
#216778 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) | #5C6479 | 0.063 |
| Deuteranopia (no green cones) | #505B78 | 0.057 |
| Tritanopia (no blue cones) | #006D6C | 0.034 |
| Achromatopsia (no color) | #5F5F5F | 0.073 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #216778
#216778
oklch(47.8% 0.073 217.3)
- #814E3F
#814E3F
oklch(47.9% 0.073 37.2)
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 #216778, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aqua #05696B ΔE 0.028
- Petrol #005F6A ΔE 0.036
- Deep Turquoise #017374 ΔE 0.041
- Dark Aquamarine #017371 ΔE 0.043
- Denim #3B638C ΔE 0.045
- YInMn Blue #415A77 ΔE 0.046
- Slate #516572 ΔE 0.047
- Peacock Blue #016795 ΔE 0.048
Use #216778 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.