#337281
Closest named color: Deep Aqua (#08787F). oklch(51.7% 0.068 215.7), rgb(51, 114, 129).
Aa
White text reads best on this color (5.43:1).
About this color
#337281 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 52%, its chroma 0.068 and its hue 216°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Aqua (#08787F), ΔE 0.027 away. White text reads best on it, at 5.43:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (52%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Deep Aqua (#08787F) |
| Black text | 3.86:1 |
| White text | 5.43:1 |
Values
| HEX | #337281 |
| RGB | rgb(51, 114, 129) |
| HSL | hsl(192, 43%, 35%) |
| OKLCH | oklch(51.7% 0.068 215.7) |
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 #337281 | 5.43:1 | AA | Lc -82.2 | Fine for body text |
| Black text on #337281 | 3.86:1 | AA large text | Lc 27.2 | Dividers and decoration only |
| #337281 text on white | 5.43:1 | AA | Lc 76.9 | Fine for body text |
| #337281 text on black | 3.86:1 | AA large text | Lc -24.8 | 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 700.
-
Step 50
50
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3ECEE
oklch(93.7% 0.01 212.5)
-
Step 200
200
#CCDCE1
oklch(88.4% 0.019 218.4)
-
Step 300
300
#AAC6CE
oklch(80.8% 0.032 216.9)
-
Step 400
400
#7BA9B6
oklch(70.6% 0.053 217.1)
-
Step 500
500
#5794A3
oklch(63.1% 0.067 215.3)
-
Step 600
600
#397E8F
oklch(55.6% 0.074 216.3)
-
Step 700
700 (this color)
#337281
oklch(51.7% 0.068 215.7)
-
Step 800
800
#255763
oklch(42.8% 0.057 215.9)
-
Step 900
900
#244850
oklch(37.8% 0.044 213.8)
-
Step 950
950
#162A2F
oklch(27% 0.027 215.5)
#337281 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) | #686F82 | 0.061 |
| Deuteranopia (no green cones) | #5C6681 | 0.055 |
| Tritanopia (no blue cones) | #007877 | 0.036 |
| Achromatopsia (no color) | #6A6A6A | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337281
#337281
oklch(51.7% 0.068 215.7)
- #8B5A4D
#8B5A4D
oklch(51.8% 0.068 35.5)
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 #337281, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Aqua #08787F ΔE 0.027
- Ocean #017B92 ΔE 0.034
- Deep Turquoise #017374 ΔE 0.034
- Sea Blue #047495 ΔE 0.035
- Metallic Blue #4F738E ΔE 0.037
- Bluegreen #017A79 ΔE 0.037
- Dark Aquamarine #017371 ΔE 0.038
- Slate #516572 ΔE 0.046
Use #337281 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.