#06337A
Closest named color: Marine Blue (#01386A). oklch(34.2% 0.13 260.1), rgb(6, 51, 122).
Aa
White text reads best on this color (11.91:1).
About this color
#06337A is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.130 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.032 away. White text reads best on it, at 11.91:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.130) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.76:1 |
| White text | 11.91:1 |
Values
| HEX | #06337A |
| RGB | rgb(6, 51, 122) |
| HSL | hsl(217, 91%, 25%) |
| OKLCH | oklch(34.2% 0.13 260.1) |
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 #06337A | 11.91:1 | AAA | Lc -100.3 | Preferred for body text |
| Black text on #06337A | 1.76:1 | Fails | Lc 0.0 | Not readable |
| #06337A text on white | 11.91:1 | AAA | Lc 96.6 | Preferred for body text |
| #06337A text on black | 1.76:1 | Fails | Lc 0.0 | Not readable |
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 900.
-
Step 50
50
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DFEBFD
oklch(93.6% 0.028 258.4)
-
Step 200
200
#C5DAFE
oklch(88.4% 0.055 261.2)
-
Step 300
300
#9CC2FF
oklch(80.9% 0.096 259.7)
-
Step 400
400
#669FFF
oklch(70.7% 0.154 260.3)
-
Step 500
500
#3983FF
oklch(63.1% 0.199 260.2)
-
Step 600
600
#1069EF
oklch(55.7% 0.216 260)
-
Step 700
700
#0056D0
oklch(49.2% 0.201 260.1)
-
Step 800
800
#0747A8
oklch(42.7% 0.167 260.1)
-
Step 900
900 (this color)
#06337A
oklch(34.2% 0.13 260.1)
-
Step 950
950
#0C244E
oklch(26.9% 0.083 260.7)
#06337A 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) | #003C7C | 0.025 |
| Deuteranopia (no green cones) | #003279 | 0.005 |
| Tritanopia (no blue cones) | #004551 | 0.099 |
| Achromatopsia (no color) | #373737 | 0.130 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #06337A
#06337A
oklch(34.2% 0.13 260.1)
- #4B3400
#4B3400
oklch(34.3% 0.071 81.3)
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 #06337A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.032
- Twilight Blue #0A437A ΔE 0.047
- Marine #042E60 ΔE 0.047
- Midnight Blue #191970 ΔE 0.063
- Prussian Blue #1D3557 ΔE 0.064
- Royal #0C1793 ΔE 0.068
- Cobalt #1E488F ΔE 0.072
- Light Navy #155084 ΔE 0.087
Use #06337A 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.