#228D8F
Closest named color: Dark Cyan (#008B8B). oklch(58.7% 0.092 196.9), rgb(34, 141, 143).
Aa
Black text reads best on this color (5.27:1).
About this color
#228D8F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 59%, its chroma 0.092 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.013 away. Black text reads best on it, at 5.27:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (59%) |
| Chroma | moderately saturated (0.092) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 5.27:1 |
| White text | 3.98:1 |
Values
| HEX | #228D8F |
| RGB | rgb(34, 141, 143) |
| HSL | hsl(181, 62%, 35%) |
| OKLCH | oklch(58.7% 0.092 196.9) |
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 #228D8F | 3.98:1 | AA large text | Lc -72.3 | Content text, not long reading |
| Black text on #228D8F | 5.27:1 | AA | Lc 37.3 | Non-text elements, placeholder text |
| #228D8F text on white | 3.98:1 | AA large text | Lc 66.8 | Content text, not long reading |
| #228D8F text on black | 5.27:1 | AA | Lc -34.9 | Non-text elements, placeholder text |
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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E1ECEC
oklch(93.5% 0.012 197)
-
Step 200
200
#C9DEDE
oklch(88.5% 0.022 196.8)
-
Step 300
300
#A2C9CA
oklch(80.8% 0.041 198.3)
-
Step 400
400
#6DAEAF
oklch(70.8% 0.067 197)
-
Step 500
500
#40999B
oklch(63.1% 0.084 197.3)
-
Step 600
600 (this color)
#228D8F
oklch(58.7% 0.092 196.9)
-
Step 700
700
#006F71
oklch(49.1% 0.084 197)
-
Step 800
800
#075B5C
oklch(42.8% 0.071 196.2)
-
Step 900
900
#154A4B
oklch(37.6% 0.054 196.9)
-
Step 950
950
#0E2C2C
oklch(27.1% 0.035 195.3)
#228D8F 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) | #83868F | 0.095 |
| Deuteranopia (no green cones) | #737B90 | 0.087 |
| Tritanopia (no blue cones) | #00928D | 0.018 |
| Achromatopsia (no color) | #7F7F7F | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #228D8F
#228D8F
oklch(58.7% 0.092 196.9)
- #AC6569
#AC6569
oklch(58.7% 0.092 16.6)
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 #228D8F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.013
- Teal Green #0A9396 ΔE 0.018
- Dusty Teal #4C9085 ΔE 0.034
- Teal Blue #01889F ΔE 0.034
- Sea #3C9992 ΔE 0.041
- Blue Green #0F9B8E ΔE 0.043
- Teal #008080 ΔE 0.044
- Persian Green #2A9D8F ΔE 0.050
Use #228D8F 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.