#033572
Closest named color: Marine Blue (#01386A). oklch(33.9% 0.116 257), rgb(3, 53, 114).
Aa
White text reads best on this color (11.95:1).
About this color
#033572 is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.116 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.017 away. White text reads best on it, at 11.95:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.116) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.75:1 |
| White text | 11.95:1 |
Values
| HEX | #033572 |
| RGB | rgb(3, 53, 114) |
| HSL | hsl(213, 95%, 23%) |
| OKLCH | oklch(33.9% 0.116 257) |
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 #033572 | 11.95:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #033572 | 1.75:1 | Fails | Lc 0.0 | Not readable |
| #033572 text on white | 11.95:1 | AAA | Lc 96.8 | Preferred for body text |
| #033572 text on black | 1.75:1 | 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
#F1F6FD
oklch(97.1% 0.011 256.7)
-
Step 100
100
#DFEBFB
oklch(93.6% 0.025 255.6)
-
Step 200
200
#C5DBFA
oklch(88.5% 0.049 256.9)
-
Step 300
300
#9DC3F9
oklch(80.9% 0.087 257.2)
-
Step 400
400
#65A2F6
oklch(70.7% 0.139 256.7)
-
Step 500
500
#3787F3
oklch(63% 0.18 257.1)
-
Step 600
600
#076EE1
oklch(55.6% 0.194 257)
-
Step 700
700
#005CC1
oklch(49.2% 0.175 257.1)
-
Step 800
800
#034B9E
oklch(42.7% 0.149 257.1)
-
Step 900
900 (this color)
#033572
oklch(33.9% 0.116 257)
-
Step 950
950
#0B264A
oklch(27.1% 0.074 256.8)
#033572 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) | #0A3C74 | 0.022 |
| Deuteranopia (no green cones) | #003271 | 0.009 |
| Tritanopia (no blue cones) | #00444E | 0.087 |
| Achromatopsia (no color) | #373737 | 0.116 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #033572
#033572
oklch(33.9% 0.116 257)
- #4C3200
#4C3200
oklch(33.9% 0.071 77.1)
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 #033572, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.017
- Marine #042E60 ΔE 0.036
- Twilight Blue #0A437A ΔE 0.044
- Prussian Blue #1D3557 ΔE 0.050
- Midnight Blue #191970 ΔE 0.068
- Midnight Green #073B4C ΔE 0.074
- Dark Blue Grey #1F3B4D ΔE 0.074
- Cobalt #1E488F ΔE 0.076
Use #033572 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.