#379DAB
Closest named color: Cadet Blue (#5F9EA0). oklch(64.4% 0.094 208), rgb(55, 157, 171).
Aa
Black text reads best on this color (6.57:1).
About this color
#379DAB is a medium-light, moderately saturated teal or cyan. In OKLCH its lightness is 64%, its chroma 0.094 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 6.57:1.
| Hue family | Teals and cyans |
| Lightness | medium-light (64%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Cadet Blue (#5F9EA0) |
| Black text | 6.57:1 |
| White text | 3.19:1 |
Values
| HEX | #379DAB |
| RGB | rgb(55, 157, 171) |
| HSL | hsl(187, 51%, 44%) |
| OKLCH | oklch(64.4% 0.094 208) |
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 #379DAB | 3.19:1 | AA large text | Lc -64.2 | Content text, not long reading |
| Black text on #379DAB | 6.57:1 | AA | Lc 45.2 | Large or bold text, headings |
| #379DAB text on white | 3.19:1 | AA large text | Lc 58.8 | Large or bold text, headings |
| #379DAB text on black | 6.57:1 | AA | Lc -42.9 | 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
#F1F7F7
oklch(97.2% 0.006 197.1)
-
Step 100
100
#E0ECEE
oklch(93.5% 0.013 208.8)
-
Step 200
200
#C7DEE2
oklch(88.5% 0.025 209.3)
-
Step 300
300
#9FC9D0
oklch(80.8% 0.045 208.8)
-
Step 400
400
#66AEB8
oklch(70.7% 0.074 207.1)
-
Step 500
500 (this color)
#379DAB
oklch(64.4% 0.094 208)
-
Step 600
600
#008290
oklch(55.5% 0.095 208)
-
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
#094A52
oklch(37.6% 0.061 207.9)
-
Step 950
950
#0A2C30
oklch(27.1% 0.039 206.2)
#379DAB 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) | #9097AC | 0.091 |
| Deuteranopia (no green cones) | #7F8BAB | 0.082 |
| Tritanopia (no blue cones) | #00A4A1 | 0.033 |
| Achromatopsia (no color) | #909090 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #379DAB
#379DAB
oklch(64.4% 0.094 208)
- #C0776D
#C0776D
oklch(64.5% 0.094 28.3)
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 #379DAB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cadet Blue #5F9EA0 ΔE 0.035
- Sea #3C9992 ΔE 0.036
- Persian Green #2A9D8F ΔE 0.045
- Teal Green #0A9396 ΔE 0.046
- Blue Green #0F9B8E ΔE 0.049
- Dull Teal #5F9E8F ΔE 0.050
- Grey Teal #5E9B8A ΔE 0.053
- Dusty Teal #4C9085 ΔE 0.058
Use #379DAB 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.