#337594
Closest named color: Sea Blue (#047495). oklch(53.3% 0.082 231.5), rgb(51, 117, 148).
Aa
White text reads best on this color (5.10:1).
About this color
#337594 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.082 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Sea Blue (#047495), ΔE 0.022 away. White text reads best on it, at 5.10:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Sea Blue (#047495) |
| Black text | 4.11:1 |
| White text | 5.10:1 |
Values
| HEX | #337594 |
| RGB | rgb(51, 117, 148) |
| HSL | hsl(199, 49%, 39%) |
| OKLCH | oklch(53.3% 0.082 231.5) |
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 #337594 | 5.10:1 | AA | Lc -80.4 | Fine for body text |
| Black text on #337594 | 4.11:1 | AA large text | Lc 29.1 | Dividers and decoration only |
| #337594 text on white | 5.10:1 | AA | Lc 75.0 | Fine for body text |
| #337594 text on black | 4.11:1 | AA large text | Lc -26.7 | 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
#CCDCE4
oklch(88.5% 0.02 229.1)
-
Step 300
300
#AAC5D5
oklch(80.8% 0.037 233.9)
-
Step 400
400
#7BA8BF
oklch(70.7% 0.059 230.8)
-
Step 500
500
#5792AF
oklch(63.1% 0.075 231)
-
Step 600
600 (this color)
#337594
oklch(53.3% 0.082 231.5)
-
Step 700
700
#2C6884
oklch(49% 0.076 231.4)
-
Step 800
800
#26556C
oklch(42.7% 0.064 232.2)
-
Step 900
900
#244657
oklch(37.6% 0.049 231.8)
-
Step 950
950
#162933
oklch(26.9% 0.031 232.5)
#337594 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) | #667496 | 0.056 |
| Deuteranopia (no green cones) | #586A94 | 0.047 |
| Tritanopia (no blue cones) | #007D7F | 0.053 |
| Achromatopsia (no color) | #6E6E6E | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #337594
#337594
oklch(53.3% 0.082 231.5)
- #935E3F
#935E3F
oklch(53.3% 0.083 50.5)
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 #337594, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Sea Blue #047495 ΔE 0.022
- Muted Blue #3B719F ΔE 0.025
- Dull Blue #49759C ΔE 0.025
- Ocean #017B92 ΔE 0.027
- Metallic Blue #4F738E ΔE 0.027
- Cerulean #457B9D ΔE 0.028
- Ocean Blue #03719C ΔE 0.030
- Flat Blue #3C73A8 ΔE 0.036
Use #337594 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.