#337789
Closest named color: Ocean (#017B92). oklch(53.3% 0.073 218), rgb(51, 119, 137).
Aa
White text reads best on this color (5.07:1).
About this color
#337789 is a medium-dark, moderately saturated teal or cyan. In OKLCH its lightness is 53%, its chroma 0.073 and its hue 218°. Its hue sits on the cool side of the wheel. The nearest named color is Ocean (#017B92), ΔE 0.023 away. White text reads best on it, at 5.07:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.073) |
| Temperature | cool |
| Nearest name | Ocean (#017B92) |
| Black text | 4.14:1 |
| White text | 5.07:1 |
Values
| HEX | #337789 |
| RGB | rgb(51, 119, 137) |
| HSL | hsl(193, 46%, 37%) |
| OKLCH | oklch(53.3% 0.073 218) |
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 #337789 | 5.07:1 | AA | Lc -80.2 | Fine for body text |
| Black text on #337789 | 4.14:1 | AA large text | Lc 29.3 | Dividers and decoration only |
| #337789 text on white | 5.07:1 | AA | Lc 74.8 | Content text, not long reading |
| #337789 text on black | 4.14:1 | AA large text | Lc -26.9 | 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
#CCDCE1
oklch(88.4% 0.019 218.4)
-
Step 300
300
#AAC6CF
oklch(80.9% 0.033 219.2)
-
Step 400
400
#7BA9B7
oklch(70.7% 0.053 218.6)
-
Step 500
500
#5794A5
oklch(63.2% 0.068 217.7)
-
Step 600
600 (this color)
#337789
oklch(53.3% 0.073 218)
-
Step 700
700
#2C6A7A
oklch(49.1% 0.068 217.5)
-
Step 800
800
#265664
oklch(42.6% 0.057 219.6)
-
Step 900
900
#244751
oklch(37.6% 0.044 218.5)
-
Step 950
950
#162A30
oklch(27.1% 0.028 219)
#337789 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) | #6B748A | 0.063 |
| Deuteranopia (no green cones) | #5F6A89 | 0.058 |
| Tritanopia (no blue cones) | #007D7D | 0.037 |
| Achromatopsia (no color) | #6E6E6E | 0.074 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337789
#337789
oklch(53.3% 0.073 218)
- #925E4D
#925E4D
oklch(53.4% 0.073 38.9)
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 #337789, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Ocean #017B92 ΔE 0.023
- Deep Aqua #08787F ΔE 0.028
- Metallic Blue #4F738E ΔE 0.031
- Sea Blue #047495 ΔE 0.031
- Cerulean #457B9D ΔE 0.038
- Bluegreen #017A79 ΔE 0.039
- Teal #008080 ΔE 0.040
- Dull Blue #49759C ΔE 0.040
Use #337789 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.