#376371
Closest named color: Slate (#516572). oklch(47.4% 0.054 220.6), rgb(55, 99, 113).
Aa
White text reads best on this color (6.59:1).
About this color
#376371 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 47%, its chroma 0.054 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Slate (#516572), ΔE 0.033 away. White text reads best on it, at 6.59:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (47%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Slate (#516572) |
| Black text | 3.18:1 |
| White text | 6.59:1 |
Values
| HEX | #376371 |
| RGB | rgb(55, 99, 113) |
| HSL | hsl(194, 35%, 33%) |
| OKLCH | oklch(47.4% 0.054 220.6) |
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 #376371 | 6.59:1 | AA | Lc -87.6 | Fine for body text |
| Black text on #376371 | 3.18:1 | AA large text | Lc 21.5 | Dividers and decoration only |
| #376371 text on white | 6.59:1 | AA | Lc 82.5 | Fine for body text |
| #376371 text on black | 3.18:1 | AA large text | Lc -19.4 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#CFDCE0
oklch(88.6% 0.015 218.1)
-
Step 300
300
#AFC5CC
oklch(80.9% 0.026 218.9)
-
Step 400
400
#85A7B3
oklch(70.7% 0.041 221.4)
-
Step 500
500
#6591A0
oklch(63% 0.053 221.2)
-
Step 600
600
#4B7B8B
oklch(55.5% 0.058 221.2)
-
Step 700
700 (this color)
#376371
oklch(47.4% 0.054 220.6)
-
Step 800
800
#325560
oklch(42.8% 0.044 220)
-
Step 900
900
#2C464E
oklch(37.7% 0.034 219.2)
-
Step 950
950
#1A292E
oklch(27% 0.022 220.6)
#376371 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) | #5A6172 | 0.044 |
| Deuteranopia (no green cones) | #525A71 | 0.041 |
| Tritanopia (no blue cones) | #186867 | 0.035 |
| Achromatopsia (no color) | #5D5D5D | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #376371
#376371
oklch(47.4% 0.054 220.6)
- #765245
#765245
oklch(47.4% 0.053 40.7)
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 #376371, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate #516572 ΔE 0.033
- YInMn Blue #415A77 ΔE 0.034
- Dark Aqua #05696B ΔE 0.037
- Petrol #005F6A ΔE 0.040
- Denim #3B638C ΔE 0.046
- Dark Green Blue #1F6357 ΔE 0.051
- Dusty Grape #545775 ΔE 0.051
- Deep Turquoise #017374 ΔE 0.052
Use #376371 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.