#39839F
Closest named color: Cerulean (#457B9D). oklch(57.5% 0.084 226.1), rgb(57, 131, 159).
Aa
Black text reads best on this color (4.92:1).
About this color
#39839F is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 58%, its chroma 0.084 and its hue 226°. Its hue sits on the cool side of the wheel. The nearest named color is Cerulean (#457B9D), ΔE 0.024 away. Black text reads best on it, at 4.92:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (58%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Cerulean (#457B9D) |
| Black text | 4.92:1 |
| White text | 4.26:1 |
Values
| HEX | #39839F |
| RGB | rgb(57, 131, 159) |
| HSL | hsl(196, 47%, 42%) |
| OKLCH | oklch(57.5% 0.084 226.1) |
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 #39839F | 4.26:1 | AA large text | Lc -74.8 | Content text, not long reading |
| Black text on #39839F | 4.92:1 | AA | Lc 34.8 | Non-text elements, placeholder text |
| #39839F text on white | 4.26:1 | AA large text | Lc 69.3 | Content text, not long reading |
| #39839F text on black | 4.92:1 | AA | Lc -32.4 | 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 600.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3ECEF
oklch(93.7% 0.01 219.6)
-
Step 200
200
#CBDCE4
oklch(88.4% 0.021 227.6)
-
Step 300
300
#A8C6D4
oklch(80.9% 0.038 227.7)
-
Step 400
400
#77A9BE
oklch(70.7% 0.061 226)
-
Step 500
500
#5293AD
oklch(63% 0.077 226.1)
-
Step 600
600 (this color)
#39839F
oklch(57.5% 0.084 226.1)
-
Step 700
700
#246A83
oklch(49.2% 0.079 225.7)
-
Step 800
800
#20566A
oklch(42.6% 0.065 226)
-
Step 900
900
#214756
oklch(37.7% 0.05 226.3)
-
Step 950
950
#142A32
oklch(27.1% 0.032 223.6)
#39839F 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) | #7480A0 | 0.064 |
| Deuteranopia (no green cones) | #65769F | 0.056 |
| Tritanopia (no blue cones) | #008B8C | 0.050 |
| Achromatopsia (no color) | #7A7A7A | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #39839F
#39839F
oklch(57.5% 0.084 226.1)
- #A2694D
#A2694D
oklch(57.5% 0.084 46.7)
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 #39839F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cerulean #457B9D ΔE 0.024
- Teal Blue #01889F ΔE 0.025
- Stormy Blue #507B9C ΔE 0.028
- Blue NCS #118AB2 ΔE 0.033
- Steel Blue #4682B4 ΔE 0.037
- Off Blue #5684AE ΔE 0.038
- Dull Blue #49759C ΔE 0.041
- Dusty Blue #5A86AD ΔE 0.041
Use #39839F 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.