#39A3B2
Closest named color: Cadet Blue (#5F9EA0). oklch(66.2% 0.097 208.4), rgb(57, 163, 178).
Aa
Black text reads best on this color (7.05:1).
About this color
#39A3B2 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 66%, its chroma 0.097 and its hue 208°. Its hue sits on the cool side of the wheel. The nearest named color is Cadet Blue (#5F9EA0), ΔE 0.035 away. Black text reads best on it, at 7.05:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.097) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 7.05:1 |
| White text | 2.97:1 |
Values
| HEX | #39A3B2 |
| RGB | rgb(57, 163, 178) |
| HSL | hsl(187, 51%, 46%) |
| OKLCH | oklch(66.2% 0.097 208.4) |
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 #39A3B2 | 2.97:1 | Fails | Lc -61.4 | Content text, not long reading |
| Black text on #39A3B2 | 7.05:1 | AAA | Lc 48.0 | Large or bold text, headings |
| #39A3B2 text on white | 2.97:1 | Fails | Lc 56.1 | Large or bold text, headings |
| #39A3B2 text on black | 7.05:1 | AAA | Lc -45.7 | 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
#F1F7F8
oklch(97.2% 0.007 208.8)
-
Step 100
100
#E0EDEF
oklch(93.7% 0.014 207.9)
-
Step 200
200
#C6DEE2
oklch(88.4% 0.026 208.7)
-
Step 300
300
#9ECAD1
oklch(81% 0.047 208.2)
-
Step 400
400
#64AEBA
oklch(70.7% 0.076 209)
-
Step 500
500 (this color)
#39A3B2
oklch(66.2% 0.097 208.4)
-
Step 600
600
#008291
oklch(55.5% 0.096 208.9)
-
Step 700
700
#006E7A
oklch(49.2% 0.085 207.9)
-
Step 800
800
#005A64
oklch(42.8% 0.073 207.9)
-
Step 900
900
#054B53
oklch(37.8% 0.063 207.4)
-
Step 950
950
#092C31
oklch(27.1% 0.04 208.6)
#39A3B2 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) | #959DB3 | 0.093 |
| Deuteranopia (no green cones) | #8390B2 | 0.084 |
| Tritanopia (no blue cones) | #00AAA7 | 0.034 |
| Achromatopsia (no color) | #969696 | 0.097 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39A3B2
#39A3B2
oklch(66.2% 0.097 208.4)
- #C77B71
#C77B71
oklch(66.1% 0.097 28)
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 #39A3B2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.035
- Turquoise Blue #06B1C4 ΔE 0.041
- Sea #3C9992 ΔE 0.049
- Light Sea Green #20B2AA ΔE 0.049
- Dull Teal #5F9E8F ΔE 0.053
- Persian Green #2A9D8F ΔE 0.054
- Greyblue #77A1B5 ΔE 0.055
- Grey Teal #5E9B8A ΔE 0.059
Use #39A3B2 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.