#377E81
Closest named color: Teal (#008080). oklch(54.9% 0.071 199.1), rgb(55, 126, 129).
Aa
White text reads best on this color (4.70:1).
About this color
#377E81 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 55%, its chroma 0.071 and its hue 199°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.024 away. White text reads best on it, at 4.70:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (55%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.46:1 |
| White text | 4.70:1 |
Values
| HEX | #377E81 |
| RGB | rgb(55, 126, 129) |
| HSL | hsl(182, 40%, 36%) |
| OKLCH | oklch(54.9% 0.071 199.1) |
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 #377E81 | 4.70:1 | AA | Lc -77.9 | Fine for body text |
| Black text on #377E81 | 4.46:1 | AA large text | Lc 31.6 | Non-text elements, placeholder text |
| #377E81 text on white | 4.70:1 | AA | Lc 72.5 | Content text, not long reading |
| #377E81 text on black | 4.46:1 | AA large text | Lc -29.2 | Dividers and decoration only |
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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CCDDDD
oklch(88.5% 0.018 196.8)
-
Step 300
300
#AAC7C8
oklch(80.9% 0.031 199.1)
-
Step 400
400
#7BABAD
oklch(70.8% 0.051 199.3)
-
Step 500
500
#579698
oklch(63.2% 0.065 198.3)
-
Step 600
600 (this color)
#377E81
oklch(54.9% 0.071 199.1)
-
Step 700
700
#2B6C6F
oklch(49.1% 0.065 199.4)
-
Step 800
800
#25585A
oklch(42.7% 0.054 198.8)
-
Step 900
900
#24494A
oklch(37.8% 0.042 197.8)
-
Step 950
950
#162B2B
oklch(27.2% 0.027 195.7)
#377E81 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) | #767981 | 0.073 |
| Deuteranopia (no green cones) | #6A7081 | 0.067 |
| Tritanopia (no blue cones) | #00827F | 0.026 |
| Achromatopsia (no color) | #747474 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #377E81
#377E81
oklch(54.9% 0.071 199.1)
- #966061
#966061
oklch(54.8% 0.071 18.4)
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 #377E81, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.024
- Bluegreen #017A79 ΔE 0.032
- Deep Aqua #08787F ΔE 0.032
- Ocean #017B92 ΔE 0.038
- Dark Cyan #008B8B ΔE 0.039
- Teal Blue #01889F ΔE 0.048
- Deep Turquoise #017374 ΔE 0.048
- Metallic Blue #4F738E ΔE 0.049
Use #377E81 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.