#337B7C
Closest named color: Teal (#008080). oklch(53.8% 0.071 196.5), rgb(51, 123, 124).
Aa
White text reads best on this color (4.92:1).
About this color
#337B7C is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 54%, its chroma 0.071 and its hue 197°. Its hue sits on the cool side of the wheel. The nearest named color is Teal (#008080), ΔE 0.022 away. White text reads best on it, at 4.92:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | Teal (#008080) |
| Black text | 4.26:1 |
| White text | 4.92:1 |
Values
| HEX | #337B7C |
| RGB | rgb(51, 123, 124) |
| HSL | hsl(181, 42%, 34%) |
| OKLCH | oklch(53.8% 0.071 196.5) |
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 #337B7C | 4.92:1 | AA | Lc -79.3 | Fine for body text |
| Black text on #337B7C | 4.26:1 | AA large text | Lc 30.2 | Non-text elements, placeholder text |
| #337B7C text on white | 4.92:1 | AA | Lc 73.9 | Content text, not long reading |
| #337B7C text on black | 4.26:1 | AA large text | Lc -27.8 | 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
#AAC7C7
oklch(80.8% 0.031 196.6)
-
Step 400
400
#7BABAB
oklch(70.7% 0.051 196.1)
-
Step 500
500
#579697
oklch(63.1% 0.065 196.9)
-
Step 600
600 (this color)
#337B7C
oklch(53.8% 0.071 196.5)
-
Step 700
700
#2A6C6D
oklch(49% 0.066 196.6)
-
Step 800
800
#255859
oklch(42.6% 0.054 197.1)
-
Step 900
900
#234949
oklch(37.8% 0.043 195.5)
-
Step 950
950
#162B2B
oklch(27.2% 0.027 195.7)
#337B7C 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) | #73767C | 0.073 |
| Deuteranopia (no green cones) | #676D7D | 0.068 |
| Tritanopia (no blue cones) | #007F7B | 0.023 |
| Achromatopsia (no color) | #707070 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337B7C
#337B7C
oklch(53.8% 0.071 196.5)
- #935D60
#935D60
oklch(53.8% 0.071 16.1)
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 #337B7C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Teal #008080 ΔE 0.022
- Bluegreen #017A79 ΔE 0.023
- Deep Aqua #08787F ΔE 0.024
- Deep Turquoise #017374 ΔE 0.038
- Ocean #017B92 ΔE 0.038
- Dark Aquamarine #017371 ΔE 0.039
- Dark Cyan #008B8B ΔE 0.047
- Metallic Blue #4F738E ΔE 0.051
Use #337B7C 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.