#337587
Closest named color: Ocean (#017B92). oklch(52.7% 0.072 218.5), rgb(51, 117, 135).
Aa
White text reads best on this color (5.20:1).
About this color
#337587 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.072 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.026 away. White text reads best on it, at 5.20:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.072) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.03:1 |
| White text | 5.20:1 |
Values
| HEX | #337587 |
| RGB | rgb(51, 117, 135) |
| HSL | hsl(193, 45%, 36%) |
| OKLCH | oklch(52.7% 0.072 218.5) |
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 #337587 | 5.20:1 | AA | Lc -81.0 | Fine for body text |
| Black text on #337587 | 4.03:1 | AA large text | Lc 28.5 | Dividers and decoration only |
| #337587 text on white | 5.20:1 | AA | Lc 75.6 | Fine for body text |
| #337587 text on black | 4.03:1 | AA large text | Lc -26.1 | 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
#F2F6F7
oklch(97% 0.004 214.3)
-
Step 100
100
#E3EBEE
oklch(93.5% 0.009 222.1)
-
Step 200
200
#CDDCE1
oklch(88.5% 0.018 219.7)
-
Step 300
300
#AAC6CF
oklch(80.9% 0.033 219.2)
-
Step 400
400
#7CA9B6
oklch(70.7% 0.052 217.5)
-
Step 500
500
#5993A5
oklch(63% 0.066 219.8)
-
Step 600
600 (this color)
#337587
oklch(52.7% 0.072 218.5)
-
Step 700
700
#2E6A7A
oklch(49.2% 0.067 218)
-
Step 800
800
#275663
oklch(42.6% 0.055 218.4)
-
Step 900
900
#254751
oklch(37.7% 0.043 219)
-
Step 950
950
#162A2F
oklch(27% 0.027 215.5)
#337587 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) | #697288 | 0.061 |
| Deuteranopia (no green cones) | #5D6987 | 0.055 |
| Tritanopia (no blue cones) | #007B7B | 0.038 |
| Achromatopsia (no color) | #6D6D6D | 0.072 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337587
#337587
oklch(52.7% 0.072 218.5)
- #8F5C4C
#8F5C4C
oklch(52.7% 0.072 38.2)
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 #337587, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.026
- Deep Aqua #08787F ΔE 0.028
- Sea Blue #047495 ΔE 0.030
- Metallic Blue #4F738E ΔE 0.032
- Bluegreen #017A79 ΔE 0.039
- Deep Turquoise #017374 ΔE 0.041
- Cerulean #457B9D ΔE 0.042
- Dull Blue #49759C ΔE 0.042
Use #337587 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.