#21768F
Closest named color: Ocean (#017B92). oklch(52.8% 0.087 222.1), rgb(33, 118, 143).
Aa
White text reads best on this color (5.18:1).
About this color
#21768F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.087 and its hue 222°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.016 away. White text reads best on it, at 5.18:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.087) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.05:1 |
| White text | 5.18:1 |
Values
| HEX | #21768F |
| RGB | rgb(33, 118, 143) |
| HSL | hsl(194, 63%, 35%) |
| OKLCH | oklch(52.8% 0.087 222.1) |
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 #21768F | 5.18:1 | AA | Lc -80.7 | Fine for body text |
| Black text on #21768F | 4.05:1 | AA large text | Lc 28.7 | Dividers and decoration only |
| #21768F text on white | 5.18:1 | AA | Lc 75.3 | Fine for body text |
| #21768F text on black | 4.05:1 | AA large text | Lc -26.4 | 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 600.
-
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
#CADDE3
oklch(88.5% 0.022 218.6)
-
Step 300
300
#A6C7D3
oklch(80.9% 0.039 221.9)
-
Step 400
400
#75AABD
oklch(70.8% 0.062 222.4)
-
Step 500
500
#4D94AC
oklch(63% 0.08 222.4)
-
Step 600
600 (this color)
#21768F
oklch(52.8% 0.087 222.1)
-
Step 700
700
#1D6B81
oklch(49.2% 0.08 221.2)
-
Step 800
800
#1B5769
oklch(42.7% 0.067 221.8)
-
Step 900
900
#1E4855
oklch(37.8% 0.051 221)
-
Step 950
950
#132A32
oklch(27% 0.033 222.8)
#21768F 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) | #677390 | 0.069 |
| Deuteranopia (no green cones) | #59688F | 0.063 |
| Tritanopia (no blue cones) | #007E7E | 0.043 |
| Achromatopsia (no color) | #6D6D6D | 0.087 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21768F
#21768F
oklch(52.8% 0.087 222.1)
- #955A42
#955A42
oklch(52.9% 0.086 42.7)
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 #21768F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.016
- Sea Blue #047495 ΔE 0.016
- Deep Aqua #08787F ΔE 0.031
- Ocean Blue #03719C ΔE 0.031
- Metallic Blue #4F738E ΔE 0.038
- Muted Blue #3B719F ΔE 0.038
- Cerulean #457B9D ΔE 0.040
- Dull Blue #49759C ΔE 0.041
Use #21768F 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.