#377263
Closest named color: Dark Aquamarine (#017371). oklch(50.8% 0.067 174.8), rgb(55, 114, 99).
Aa
White text reads best on this color (5.60:1).
About this color
#377263 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 51%, its chroma 0.067 and its hue 175°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Aquamarine (#017371), ΔE 0.031 away. White text reads best on it, at 5.60:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (51%) |
| Chroma | muted (0.067) |
| Temperature | cool |
| Nearest name | Dark Aquamarine (#017371) |
| Black text | 3.74:1 |
| White text | 5.60:1 |
Values
| HEX | #377263 |
| RGB | rgb(55, 114, 99) |
| HSL | hsl(165, 35%, 33%) |
| OKLCH | oklch(50.8% 0.067 174.8) |
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 #377263 | 5.60:1 | AA | Lc -83.1 | Fine for body text |
| Black text on #377263 | 3.74:1 | AA large text | Lc 26.2 | Dividers and decoration only |
| #377263 text on white | 5.60:1 | AA | Lc 77.8 | Fine for body text |
| #377263 text on black | 3.74:1 | AA large text | Lc -23.9 | 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 700.
-
Step 50
50
#F3F6F5
oklch(97.1% 0.003 174.5)
-
Step 100
100
#E4ECE9
oklch(93.6% 0.009 171.8)
-
Step 200
200
#CEDDD8
oklch(88.5% 0.017 174)
-
Step 300
300
#ACC8BF
oklch(80.9% 0.033 174.1)
-
Step 400
400
#7FAC9F
oklch(70.8% 0.052 175)
-
Step 500
500
#5D9787
oklch(63.2% 0.066 174.6)
-
Step 600
600
#418171
oklch(55.6% 0.071 175.3)
-
Step 700
700 (this color)
#377263
oklch(50.8% 0.067 174.8)
-
Step 800
800
#2A594D
oklch(42.7% 0.056 174.8)
-
Step 900
900
#274940
oklch(37.6% 0.043 174.9)
-
Step 950
950
#182B26
oklch(27.1% 0.027 175.7)
#377263 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) | #6E6C62 | 0.069 |
| Deuteranopia (no green cones) | #656564 | 0.066 |
| Tritanopia (no blue cones) | #1E736E | 0.022 |
| Achromatopsia (no color) | #686868 | 0.067 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #377263
#377263
oklch(50.8% 0.067 174.8)
- #845567
#845567
oklch(50.7% 0.067 355.2)
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 #377263, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Aquamarine #017371 ΔE 0.031
- Deep Turquoise #017374 ΔE 0.034
- Bluegreen #017A79 ΔE 0.038
- Deep Aqua #08787F ΔE 0.044
- Dark Aqua #05696B ΔE 0.046
- Teal #008080 ΔE 0.052
- Dark Green Blue #1F6357 ΔE 0.054
- Slate #516572 ΔE 0.060
Use #377263 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.