#399B83
Closest named color: Persian Green (#2A9D8F). oklch(62.5% 0.098 173.8), rgb(57, 155, 131).
Aa
Black text reads best on this color (6.19:1).
About this color
#399B83 is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 63%, its chroma 0.098 and its hue 174°. Its hue sits on the cool side of the wheel. The nearest named color is Persian Green (#2A9D8F), ΔE 0.017 away. Black text reads best on it, at 6.19:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (63%) |
| Chroma | moderately saturated (0.098) |
| Temperature | cool |
| Nearest name | Persian Green (#2A9D8F) |
| Black text | 6.19:1 |
| White text | 3.39:1 |
Values
| HEX | #399B83 |
| RGB | rgb(57, 155, 131) |
| HSL | hsl(165, 46%, 42%) |
| OKLCH | oklch(62.5% 0.098 173.8) |
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 #399B83 | 3.39:1 | AA large text | Lc -66.6 | Content text, not long reading |
| Black text on #399B83 | 6.19:1 | AA | Lc 42.9 | Non-text elements, placeholder text |
| #399B83 text on white | 3.39:1 | AA large text | Lc 61.1 | Content text, not long reading |
| #399B83 text on black | 6.19:1 | AA | Lc -40.6 | 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
#F1F7F5
oklch(97.1% 0.007 174.4)
-
Step 100
100
#E1EDE9
oklch(93.6% 0.014 174.2)
-
Step 200
200
#C8DFD8
oklch(88.5% 0.026 175.5)
-
Step 300
300
#A1CBBE
oklch(80.8% 0.048 174.2)
-
Step 400
400
#6BB19D
oklch(70.8% 0.077 173.8)
-
Step 500
500 (this color)
#399B83
oklch(62.5% 0.098 173.8)
-
Step 600
600
#00876E
oklch(55.6% 0.106 173.6)
-
Step 700
700
#00725C
oklch(49.2% 0.094 173.1)
-
Step 800
800
#005D4B
oklch(42.7% 0.081 173.5)
-
Step 900
900
#114C3F
oklch(37.6% 0.063 174.6)
-
Step 950
950
#0D2D25
oklch(27.1% 0.041 174)
#399B83 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) | #969182 | 0.103 |
| Deuteranopia (no green cones) | #888785 | 0.098 |
| Tritanopia (no blue cones) | #009D94 | 0.027 |
| Achromatopsia (no color) | #8B8B8B | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #399B83
#399B83
oklch(62.5% 0.098 173.8)
- #B66E8C
#B66E8C
oklch(62.5% 0.098 353.8)
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 #399B83, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Persian Green #2A9D8F ΔE 0.017
- Blue Green #0F9B8E ΔE 0.021
- Ocean Green #3D9973 ΔE 0.022
- Sea #3C9992 ΔE 0.026
- Grey Teal #5E9B8A ΔE 0.034
- Dusty Teal #4C9085 ΔE 0.036
- Dull Teal #5F9E8F ΔE 0.040
- Teal Green #0A9396 ΔE 0.047
Use #399B83 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.