#216B81
Closest named color: Sea Blue (#047495). oklch(49.3% 0.078 221.8), rgb(33, 107, 129).
Aa
White text reads best on this color (6.02:1).
About this color
#216B81 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 49%, its chroma 0.078 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.036 away. White text reads best on it, at 6.02:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.078) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 3.48:1 |
| White text | 6.02:1 |
Values
| HEX | #216B81 |
| RGB | rgb(33, 107, 129) |
| HSL | hsl(194, 59%, 32%) |
| OKLCH | oklch(49.3% 0.078 221.8) |
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 #216B81 | 6.02:1 | AA | Lc -85.0 | Fine for body text |
| Black text on #216B81 | 3.48:1 | AA large text | Lc 24.2 | Dividers and decoration only |
| #216B81 text on white | 6.02:1 | AA | Lc 79.8 | Fine for body text |
| #216B81 text on black | 3.48:1 | AA large text | Lc -22.0 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CBDDE3
oklch(88.6% 0.021 219.7)
-
Step 300
300
#A7C7D2
oklch(81% 0.038 220.6)
-
Step 400
400
#76AABC
oklch(70.8% 0.061 221.5)
-
Step 500
500
#4F94AB
oklch(63% 0.078 222)
-
Step 600
600
#2F7E97
oklch(55.6% 0.085 222.5)
-
Step 700
700 (this color)
#216B81
oklch(49.3% 0.078 221.8)
-
Step 800
800
#1E5768
oklch(42.7% 0.064 221.2)
-
Step 900
900
#1F4855
oklch(37.8% 0.051 221.4)
-
Step 950
950
#132A32
oklch(27% 0.033 222.8)
#216B81 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) | #5E6882 | 0.063 |
| Deuteranopia (no green cones) | #515F81 | 0.056 |
| Tritanopia (no blue cones) | #007272 | 0.039 |
| Achromatopsia (no color) | #636363 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #216B81
#216B81
oklch(49.3% 0.078 221.8)
- #87523D
#87523D
oklch(49.4% 0.078 42.2)
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 #216B81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.036
- Deep Turquoise #017374 ΔE 0.039
- Dark Aqua #05696B ΔE 0.039
- Peacock Blue #016795 ΔE 0.039
- Denim #3B638C ΔE 0.039
- Deep Aqua #08787F ΔE 0.042
- Ocean Blue #03719C ΔE 0.042
- Dark Aquamarine #017371 ΔE 0.043
Use #216B81 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.