#239BB5
Closest named color: Teal Green (#0A9396). oklch(63.8% 0.106 216.6), rgb(35, 155, 181).
Aa
Black text reads best on this color (6.42:1).
About this color
#239BB5 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.106 and its hue 217°. Its hue sits on the cool side of the wheel. The nearest named color is Teal Green (#0A9396), ΔE 0.050 away. Black text reads best on it, at 6.42:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.106) |
| Temperature | cool |
| Nearest name | Teal Green (#0A9396) |
| Black text | 6.42:1 |
| White text | 3.26:1 |
Values
| HEX | #239BB5 |
| RGB | rgb(35, 155, 181) |
| HSL | hsl(191, 68%, 42%) |
| OKLCH | oklch(63.8% 0.106 216.6) |
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 #239BB5 | 3.26:1 | AA large text | Lc -65.0 | Content text, not long reading |
| Black text on #239BB5 | 6.42:1 | AA | Lc 44.5 | Non-text elements, placeholder text |
| #239BB5 text on white | 3.26:1 | AA large text | Lc 59.6 | Large or bold text, headings |
| #239BB5 text on black | 6.42:1 | AA | Lc -42.2 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#DFEDF0
oklch(93.7% 0.015 212)
-
Step 200
200
#C5DEE5
oklch(88.4% 0.028 216.4)
-
Step 300
300
#9BCAD6
oklch(81% 0.052 215.1)
-
Step 400
400
#5FAEC2
oklch(70.8% 0.083 216.2)
-
Step 500
500 (this color)
#239BB5
oklch(63.8% 0.106 216.6)
-
Step 600
600
#008199
oklch(55.6% 0.099 216.9)
-
Step 700
700
#006C81
oklch(49% 0.088 217.4)
-
Step 800
800
#00596A
oklch(42.8% 0.076 216.6)
-
Step 900
900
#004A59
oklch(37.7% 0.067 217.2)
-
Step 950
950
#062C34
oklch(27.2% 0.043 215.1)
#239BB5 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) | #8A96B6 | 0.093 |
| Deuteranopia (no green cones) | #7788B5 | 0.084 |
| Tritanopia (no blue cones) | #00A4A3 | 0.045 |
| Achromatopsia (no color) | #8E8E8E | 0.106 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #239BB5
#239BB5
oklch(63.8% 0.106 216.6)
- #C3735D
#C3735D
oklch(63.8% 0.107 36.2)
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 #239BB5, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal Green #0A9396 ΔE 0.050
- Blue NCS #118AB2 ΔE 0.051
- Sea #3C9992 ΔE 0.052
- Cadet Blue #5F9EA0 ΔE 0.052
- Persian Green #2A9D8F ΔE 0.061
- Turquoise Blue #06B1C4 ΔE 0.061
- Teal Blue #01889F ΔE 0.062
- Blue Green #0F9B8E ΔE 0.062
Use #239BB5 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.