#337696
Closest named color: Sea Blue (#047495). oklch(53.7% 0.084 232), rgb(51, 118, 150).
Aa
White text reads best on this color (5.03:1).
About this color
#337696 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 54%, its chroma 0.084 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.024 away. White text reads best on it, at 5.03:1.
| Hue family | Blues |
| Lightness | medium-dark (54%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 4.17:1 |
| White text | 5.03:1 |
Values
| HEX | #337696 |
| RGB | rgb(51, 118, 150) |
| HSL | hsl(199, 49%, 39%) |
| OKLCH | oklch(53.7% 0.084 232) |
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 #337696 | 5.03:1 | AA | Lc -80.0 | Fine for body text |
| Black text on #337696 | 4.17:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #337696 text on white | 5.03:1 | AA | Lc 74.6 | Content text, not long reading |
| #337696 text on black | 4.17:1 | AA large text | Lc -27.2 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CCDCE5
oklch(88.5% 0.021 232.2)
-
Step 300
300
#A9C5D5
oklch(80.8% 0.038 233)
-
Step 400
400
#7AA8C0
oklch(70.7% 0.06 231.4)
-
Step 500
500
#5692B0
oklch(63.1% 0.077 231.5)
-
Step 600
600 (this color)
#337696
oklch(53.7% 0.084 232)
-
Step 700
700
#2B6885
oklch(49% 0.078 232.1)
-
Step 800
800
#25556C
oklch(42.7% 0.064 231.8)
-
Step 900
900
#234658
oklch(37.6% 0.051 232.8)
-
Step 950
950
#152933
oklch(26.9% 0.032 231.4)
#337696 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) | #667598 | 0.056 |
| Deuteranopia (no green cones) | #586A96 | 0.049 |
| Tritanopia (no blue cones) | #007F81 | 0.054 |
| Achromatopsia (no color) | #6F6F6F | 0.084 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337696
#337696
oklch(53.7% 0.084 232)
- #945F3E
#945F3E
oklch(53.6% 0.084 52)
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 #337696, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.024
- Dull Blue #49759C ΔE 0.024
- Muted Blue #3B719F ΔE 0.024
- Cerulean #457B9D ΔE 0.025
- Ocean #017B92 ΔE 0.026
- Metallic Blue #4F738E ΔE 0.028
- Ocean Blue #03719C ΔE 0.031
- Flat Blue #3C73A8 ΔE 0.034
Use #337696 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.