#033575
Closest named color: Marine Blue (#01386A). oklch(34.2% 0.121 257.7), rgb(3, 53, 117).
Aa
White text reads best on this color (11.86:1).
About this color
#033575 is a dark, moderately saturated blue. In OKLCH its lightness is 34%, its chroma 0.121 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.022 away. White text reads best on it, at 11.86:1.
| Hue family | Blues |
| Lightness | dark (34%) |
| Chroma | moderately saturated (0.121) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.76:1 |
| White text | 11.86:1 |
Values
| HEX | #033575 |
| RGB | rgb(3, 53, 117) |
| HSL | hsl(214, 95%, 24%) |
| OKLCH | oklch(34.2% 0.121 257.7) |
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 #033575 | 11.86:1 | AAA | Lc -100.2 | Preferred for body text |
| Black text on #033575 | 1.76:1 | Fails | Lc 7.3 | Not readable |
| #033575 text on white | 11.86:1 | AAA | Lc 96.6 | Preferred for body text |
| #033575 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFC
oklch(93.6% 0.026 257)
-
Step 200
200
#C5DBFB
oklch(88.5% 0.05 257.7)
-
Step 300
300
#9CC3FB
oklch(80.9% 0.09 257.4)
-
Step 400
400
#64A1F9
oklch(70.6% 0.144 257.6)
-
Step 500
500
#3686F7
oklch(63.1% 0.186 257.9)
-
Step 600
600
#046DE5
oklch(55.6% 0.2 257.6)
-
Step 700
700
#005BC3
oklch(49.1% 0.179 257.6)
-
Step 800
800
#014AA1
oklch(42.6% 0.155 257.7)
-
Step 900
900 (this color)
#033575
oklch(34.2% 0.121 257.7)
-
Step 950
950
#0B264B
oklch(27.1% 0.076 257.3)
#033575 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) | #043C77 | 0.021 |
| Deuteranopia (no green cones) | #003374 | 0.007 |
| Tritanopia (no blue cones) | #00454F | 0.092 |
| Achromatopsia (no color) | #373737 | 0.121 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #033575
#033575
oklch(34.2% 0.121 257.7)
- #4C3300
#4C3300
oklch(34.2% 0.071 78.6)
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 #033575, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.022
- Marine #042E60 ΔE 0.041
- Twilight Blue #0A437A ΔE 0.042
- Prussian Blue #1D3557 ΔE 0.055
- Midnight Blue #191970 ΔE 0.068
- Cobalt #1E488F ΔE 0.073
- Royal #0C1793 ΔE 0.078
- Midnight Green #073B4C ΔE 0.078
Use #033575 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.