#23BBD4
Closest named color: Turquoise Blue (#06B1C4). oklch(72.9% 0.121 212.3), rgb(35, 187, 212).
Aa
Black text reads best on this color (9.13:1).
About this color
#23BBD4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 73%, its chroma 0.121 and its hue 212°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.035 away. Black text reads best on it, at 9.13:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (73%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 9.13:1 |
| White text | 2.30:1 |
Values
| HEX | #23BBD4 |
| RGB | rgb(35, 187, 212) |
| HSL | hsl(188, 72%, 48%) |
| OKLCH | oklch(72.9% 0.121 212.3) |
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 #23BBD4 | 2.30:1 | Fails | Lc -49.7 | Large or bold text, headings |
| Black text on #23BBD4 | 9.13:1 | AAA | Lc 59.1 | Large or bold text, headings |
| #23BBD4 text on white | 2.30:1 | Fails | Lc 44.9 | Non-text elements, placeholder text |
| #23BBD4 text on black | 9.13:1 | AAA | Lc -57.3 | 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
#EEF7F9
oklch(97% 0.01 212.5)
-
Step 100
100
#DAEEF2
oklch(93.6% 0.022 211)
-
Step 200
200
#BAE1EA
oklch(88.5% 0.043 213.3)
-
Step 300
300
#85CEDD
oklch(80.9% 0.076 212)
-
Step 400
400 (this color)
#23BBD4
oklch(72.9% 0.121 212.3)
-
Step 500
500
#009AB0
oklch(63% 0.11 212.4)
-
Step 600
600
#008294
oklch(55.7% 0.097 211.6)
-
Step 700
700
#006D7D
oklch(49.1% 0.086 212.3)
-
Step 800
800
#005967
oklch(42.6% 0.075 213)
-
Step 900
900
#004A56
oklch(37.6% 0.066 213)
-
Step 950
950
#002C34
oklch(26.9% 0.047 213.2)
#23BBD4 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) | #A8B4D5 | 0.112 |
| Deuteranopia (no green cones) | #91A4D4 | 0.100 |
| Tritanopia (no blue cones) | #00C5C3 | 0.044 |
| Achromatopsia (no color) | #ABABAB | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #23BBD4
#23BBD4
oklch(72.9% 0.121 212.3)
- #E98A76
#E98A76
oklch(73% 0.12 32.8)
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 #23BBD4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.035
- Dark Turquoise #00CED1 ΔE 0.056
- Topaz #13BBAF ΔE 0.056
- Vivid Sky Blue #4CC9F0 ΔE 0.057
- Light Sea Green #20B2AA ΔE 0.062
- Deep Sky Blue #00BFFF ΔE 0.062
- Bright Sky Blue #02CCFE ΔE 0.067
- Medium Turquoise #48D1CC ΔE 0.072
Use #23BBD4 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.