#228A88
Closest named color: Dark Cyan (#008B8B). oklch(57.7% 0.09 193), rgb(34, 138, 136).
Aa
Black text reads best on this color (5.05:1).
About this color
#228A88 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.090 and its hue 193°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Cyan (#008B8B), ΔE 0.009 away. Black text reads best on it, at 5.05:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Dark Cyan (#008B8B) |
| Black text | 5.05:1 |
| White text | 4.15:1 |
Values
| HEX | #228A88 |
| RGB | rgb(34, 138, 136) |
| HSL | hsl(179, 60%, 34%) |
| OKLCH | oklch(57.7% 0.09 193) |
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 #228A88 | 4.15:1 | AA large text | Lc -73.7 | Content text, not long reading |
| Black text on #228A88 | 5.05:1 | AA | Lc 35.9 | Non-text elements, placeholder text |
| #228A88 text on white | 4.15:1 | AA large text | Lc 68.2 | Content text, not long reading |
| #228A88 text on black | 5.05:1 | AA | Lc -33.5 | 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
#F2F7F6
oklch(97.2% 0.005 183)
-
Step 100
100
#E1ECEC
oklch(93.5% 0.012 197)
-
Step 200
200
#C9DEDD
oklch(88.5% 0.022 193.3)
-
Step 300
300
#A3C9C8
oklch(80.8% 0.04 194.4)
-
Step 400
400
#6FAEAC
oklch(70.8% 0.065 193.2)
-
Step 500
500
#439997
oklch(63% 0.082 193.2)
-
Step 600
600 (this color)
#228A88
oklch(57.7% 0.09 193)
-
Step 700
700
#016F6E
oklch(49% 0.084 193.7)
-
Step 800
800
#0C5B59
oklch(42.8% 0.07 192.1)
-
Step 900
900
#164B49
oklch(37.8% 0.055 191.5)
-
Step 950
950
#0F2C2B
oklch(27.1% 0.035 192.2)
#228A88 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) | #818388 | 0.094 |
| Deuteranopia (no green cones) | #727889 | 0.088 |
| Tritanopia (no blue cones) | #008E89 | 0.013 |
| Achromatopsia (no color) | #7C7C7C | 0.091 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #228A88
#228A88
oklch(57.7% 0.09 193)
- #A8626A
#A8626A
oklch(57.7% 0.091 13)
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 #228A88, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Cyan #008B8B ΔE 0.009
- Teal Green #0A9396 ΔE 0.029
- Teal #008080 ΔE 0.034
- Dusty Teal #4C9085 ΔE 0.037
- Teal Blue #01889F ΔE 0.039
- Blue Green #0F9B8E ΔE 0.049
- Sea #3C9992 ΔE 0.050
- Bluegreen #017A79 ΔE 0.053
Use #228A88 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.