#21ABCE
Closest named color: Turquoise Blue (#06B1C4). oklch(68.8% 0.119 220.5), rgb(33, 171, 206).
Aa
Black text reads best on this color (7.78:1).
About this color
#21ABCE is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 69%, its chroma 0.119 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.027 away. Black text reads best on it, at 7.78:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.119) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.78:1 |
| White text | 2.69:1 |
Values
| HEX | #21ABCE |
| RGB | rgb(33, 171, 206) |
| HSL | hsl(192, 72%, 47%) |
| OKLCH | oklch(68.8% 0.119 220.5) |
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 #21ABCE | 2.69:1 | Fails | Lc -57.1 | Large or bold text, headings |
| Black text on #21ABCE | 7.78:1 | AAA | Lc 52.2 | Large or bold text, headings |
| #21ABCE text on white | 2.69:1 | Fails | Lc 51.9 | Large or bold text, headings |
| #21ABCE text on black | 7.78:1 | AAA | Lc -50.0 | Large or bold text, headings |
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 400.
-
Step 50
50
#EFF7FA
oklch(97.1% 0.009 222.1)
-
Step 100
100
#DBEEF4
oklch(93.7% 0.022 218.6)
-
Step 200
200
#BCE0EC
oklch(88.5% 0.041 220)
-
Step 300
300
#89CCE2
oklch(80.8% 0.074 220.6)
-
Step 400
400 (this color)
#21ABCE
oklch(68.8% 0.119 220.5)
-
Step 500
500
#0099BA
oklch(63.2% 0.115 220.3)
-
Step 600
600
#00809D
oklch(55.6% 0.102 221.1)
-
Step 700
700
#006C84
oklch(49.2% 0.09 220.2)
-
Step 800
800
#00586D
oklch(42.6% 0.078 221.3)
-
Step 900
900
#004A5B
oklch(37.8% 0.069 219.8)
-
Step 950
950
#002C37
oklch(27.1% 0.049 219.4)
#21ABCE 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) | #96A6D0 | 0.098 |
| Deuteranopia (no green cones) | #8097CE | 0.086 |
| Tritanopia (no blue cones) | #00B6B6 | 0.055 |
| Achromatopsia (no color) | #9D9D9D | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #21ABCE
#21ABCE
oklch(68.8% 0.119 220.5)
- #D98060
#D98060
oklch(68.9% 0.119 40.4)
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 #21ABCE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.027
- Light Sea Green #20B2AA ΔE 0.064
- Greyblue #77A1B5 ΔE 0.066
- Cadet Blue #5F9EA0 ΔE 0.071
- Topaz #13BBAF ΔE 0.075
- Deep Sky Blue #00BFFF ΔE 0.080
- Bluegrey #85A3B2 ΔE 0.081
- Bluey Grey #89A0B0 ΔE 0.087
Use #21ABCE 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.