#39A0CC
Closest named color: Turquoise Blue (#06B1C4). oklch(66.6% 0.113 230.5), rgb(57, 160, 204).
Aa
Black text reads best on this color (7.07:1).
About this color
#39A0CC is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.113 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Turquoise Blue (#06B1C4), ΔE 0.054 away. Black text reads best on it, at 7.07:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.113) |
| Temperature | cool |
| Nearest name | Turquoise Blue (#06B1C4) |
| Black text | 7.07:1 |
| White text | 2.96:1 |
Values
| HEX | #39A0CC |
| RGB | rgb(57, 160, 204) |
| HSL | hsl(198, 59%, 51%) |
| OKLCH | oklch(66.6% 0.113 230.5) |
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 #39A0CC | 2.96:1 | Fails | Lc -61.3 | Content text, not long reading |
| Black text on #39A0CC | 7.07:1 | AAA | Lc 48.1 | Large or bold text, headings |
| #39A0CC text on white | 2.96:1 | Fails | Lc 55.9 | Large or bold text, headings |
| #39A0CC text on black | 7.07:1 | AAA | Lc -45.9 | 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 500.
-
Step 50
50
#F1F6F9
oklch(97% 0.007 233.6)
-
Step 100
100
#E0ECF3
oklch(93.6% 0.016 233)
-
Step 200
200
#C6DDEA
oklch(88.4% 0.03 232.5)
-
Step 300
300
#9DC8DE
oklch(80.9% 0.055 230.5)
-
Step 400
400
#63ABCD
oklch(70.7% 0.088 230.1)
-
Step 500
500 (this color)
#39A0CC
oklch(66.6% 0.113 230.5)
-
Step 600
600
#007EA8
oklch(55.6% 0.112 230.6)
-
Step 700
700
#006A8E
oklch(49.1% 0.099 230.6)
-
Step 800
800
#005775
oklch(42.8% 0.086 230.3)
-
Step 900
900
#044861
oklch(37.7% 0.074 230.4)
-
Step 950
950
#082A39
oklch(26.9% 0.047 231.5)
#39A0CC 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) | #8A9ECE | 0.078 |
| Deuteranopia (no green cones) | #768FCB | 0.067 |
| Tritanopia (no blue cones) | #00ACAF | 0.066 |
| Achromatopsia (no color) | #969696 | 0.113 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39A0CC
#39A0CC
oklch(66.6% 0.113 230.5)
- #CB7E51
#CB7E51
oklch(66.5% 0.113 50.2)
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 #39A0CC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Turquoise Blue #06B1C4 ΔE 0.054
- Faded Blue #658CBB ΔE 0.060
- Greyblue #77A1B5 ΔE 0.062
- Cadet Blue #5F9EA0 ΔE 0.068
- Chefchaouen Blue #4895EF ΔE 0.068
- Dark Sky Blue #448EE4 ΔE 0.069
- Cornflower Blue #6495ED ΔE 0.074
- Blue NCS #118AB2 ΔE 0.074
Use #39A0CC 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.