#377478
Closest named color: Deep Aqua (#08787F). oklch(52% 0.063 201.1), rgb(55, 116, 120).
Aa
White text reads best on this color (5.34:1).
About this color
#377478 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.063 and its hue 201°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.024 away. White text reads best on it, at 5.34:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 3.93:1 |
| White text | 5.34:1 |
Values
| HEX | #377478 |
| RGB | rgb(55, 116, 120) |
| HSL | hsl(184, 37%, 34%) |
| OKLCH | oklch(52% 0.063 201.1) |
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 #377478 | 5.34:1 | AA | Lc -81.8 | Fine for body text |
| Black text on #377478 | 3.93:1 | AA large text | Lc 27.6 | Dividers and decoration only |
| #377478 text on white | 5.34:1 | AA | Lc 76.4 | Fine for body text |
| #377478 text on black | 3.93:1 | AA large text | Lc -25.3 | 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
#F2F6F6
oklch(97% 0.004 197.1)
-
Step 100
100
#E3ECEC
oklch(93.6% 0.01 197)
-
Step 200
200
#CDDDDE
oklch(88.6% 0.017 201.4)
-
Step 300
300
#ABC7C9
oklch(81% 0.03 201.9)
-
Step 400
400
#7DAAAD
oklch(70.7% 0.048 201.3)
-
Step 500
500
#599599
oklch(63.1% 0.063 201.2)
-
Step 600
600
#3C7F84
oklch(55.5% 0.068 201.9)
-
Step 700
700 (this color)
#377478
oklch(52% 0.063 201.1)
-
Step 800
800
#27585B
oklch(42.8% 0.053 200.7)
-
Step 900
900
#25484A
oklch(37.6% 0.041 200.4)
-
Step 950
950
#162A2C
oklch(26.9% 0.026 203.9)
#377478 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) | #6C6F78 | 0.064 |
| Deuteranopia (no green cones) | #626878 | 0.059 |
| Tritanopia (no blue cones) | #037875 | 0.028 |
| Achromatopsia (no color) | #6B6B6B | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #377478
#377478
oklch(52% 0.063 201.1)
- #8A5A59
#8A5A59
oklch(52% 0.064 20.8)
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 #377478, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.024
- Bluegreen #017A79 ΔE 0.028
- Deep Turquoise #017374 ΔE 0.029
- Dark Aquamarine #017371 ΔE 0.031
- Teal #008080 ΔE 0.038
- Ocean #017B92 ΔE 0.043
- Metallic Blue #4F738E ΔE 0.047
- Slate #516572 ΔE 0.049
Use #377478 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.