#239DC4
Closest named color: Turquoise Blue (#06B1C4). oklch(65% 0.115 225.4), rgb(35, 157, 196).
Aa
Black text reads best on this color (6.69:1).
About this color
#239DC4 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 65%, its chroma 0.115 and its hue 225°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.058 away. Black text reads best on it, at 6.69:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (65%) |
| Chroma | moderately saturated (0.115) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 6.69:1 |
| White text | 3.13:1 |
Values
| HEX | #239DC4 |
| RGB | rgb(35, 157, 196) |
| HSL | hsl(195, 70%, 45%) |
| OKLCH | oklch(65% 0.115 225.4) |
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 #239DC4 | 3.13:1 | AA large text | Lc -63.4 | Content text, not long reading |
| Black text on #239DC4 | 6.69:1 | AA | Lc 46.1 | Large or bold text, headings |
| #239DC4 text on white | 3.13:1 | AA large text | Lc 58.0 | Large or bold text, headings |
| #239DC4 text on black | 6.69:1 | AA | Lc -43.7 | 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 500.
-
Step 50
50
#F0F7F9
oklch(97.1% 0.008 216.6)
-
Step 100
100
#DFECF2
oklch(93.5% 0.016 227)
-
Step 200
200
#C4DEE9
oklch(88.5% 0.032 225.1)
-
Step 300
300
#9AC9DC
oklch(80.9% 0.056 224.7)
-
Step 400
400
#5DACCB
oklch(70.6% 0.09 225.8)
-
Step 500
500 (this color)
#239DC4
oklch(65% 0.115 225.4)
-
Step 600
600
#007FA2
oklch(55.5% 0.106 225.7)
-
Step 700
700
#006B89
oklch(49.1% 0.094 225.7)
-
Step 800
800
#005870
oklch(42.8% 0.081 224.4)
-
Step 900
900
#00495E
oklch(37.7% 0.071 225)
-
Step 950
950
#042B38
oklch(27% 0.048 225.4)
#239DC4 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) | #889AC6 | 0.088 |
| Deuteranopia (no green cones) | #738BC4 | 0.076 |
| Tritanopia (no blue cones) | #00A8AA | 0.059 |
| Achromatopsia (no color) | #919191 | 0.115 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #239DC4
#239DC4
oklch(65% 0.115 225.4)
- #C87751
#C87751
oklch(64.9% 0.115 45.3)
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 #239DC4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.058
- Blue NCS #118AB2 ΔE 0.058
- Faded Blue #658CBB ΔE 0.061
- Cadet Blue #5F9EA0 ΔE 0.065
- Dusty Blue #5A86AD ΔE 0.069
- Cool Blue #4984B8 ΔE 0.069
- Water Blue #0E87CC ΔE 0.069
- Greyblue #77A1B5 ΔE 0.071
Use #239DC4 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.