#033E67
Closest named color: Marine Blue (#01386A). oklch(35.3% 0.09 246.6), rgb(3, 62, 103).
Aa
White text reads best on this color (11.11:1).
About this color
#033E67 is a dark, moderately saturated blue. In OKLCH its lightness is 35%, its chroma 0.090 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Marine Blue (#01386A), ΔE 0.021 away. White text reads best on it, at 11.11:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Marine Blue (#01386A) |
| Black text | 1.88:1 |
| White text | 11.11:1 |
Values
| HEX | #033E67 |
| RGB | rgb(3, 62, 103) |
| HSL | hsl(205, 94%, 21%) |
| OKLCH | oklch(35.3% 0.09 246.6) |
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 #033E67 | 11.11:1 | AAA | Lc -99.1 | Preferred for body text |
| Black text on #033E67 | 1.88:1 | Fails | Lc 8.7 | Not readable |
| #033E67 text on white | 11.11:1 | AAA | Lc 95.2 | Preferred for body text |
| #033E67 text on black | 1.88:1 | Fails | Lc -7.4 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0EBF6
oklch(93.5% 0.019 248)
-
Step 200
200
#C6DCF1
oklch(88.5% 0.037 247)
-
Step 300
300
#9EC5EA
oklch(80.8% 0.067 247.3)
-
Step 400
400
#66A7E0
oklch(70.8% 0.107 246.5)
-
Step 500
500
#348FD7
oklch(63% 0.138 246.5)
-
Step 600
600
#0078C2
oklch(55.6% 0.145 246.5)
-
Step 700
700
#0065A4
oklch(49.2% 0.127 246.3)
-
Step 800
800
#005288
oklch(42.7% 0.112 246.9)
-
Step 900
900 (this color)
#033E67
oklch(35.3% 0.09 246.6)
-
Step 950
950
#0B2840
oklch(26.9% 0.056 247)
#033E67 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) | #2A4069 | 0.033 |
| Deuteranopia (no green cones) | #1B3866 | 0.022 |
| Tritanopia (no blue cones) | #00484D | 0.063 |
| Achromatopsia (no color) | #3B3B3B | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #033E67
#033E67
oklch(35.3% 0.09 246.6)
- #563200
#563200
oklch(35.4% 0.078 67.2)
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 #033E67, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Marine Blue #01386A ΔE 0.021
- Twilight Blue #0A437A ΔE 0.035
- Prussian Blue #1D3557 ΔE 0.037
- Dark Blue Grey #1F3B4D ΔE 0.046
- Midnight Green #073B4C ΔE 0.047
- Dark Grey Blue #29465B ΔE 0.049
- Marine #042E60 ΔE 0.050
- Charcoal #264653 ΔE 0.056
Use #033E67 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.