#33678A
Closest named color: Denim (#3B638C). oklch(49.4% 0.079 240.4), rgb(51, 103, 138).
Aa
White text reads best on this color (6.09:1).
About this color
#33678A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.079 and its hue 240°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.015 away. White text reads best on it, at 6.09:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.079) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.44:1 |
| White text | 6.09:1 |
Values
| HEX | #33678A |
| RGB | rgb(51, 103, 138) |
| HSL | hsl(204, 46%, 37%) |
| OKLCH | oklch(49.4% 0.079 240.4) |
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 #33678A | 6.09:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #33678A | 3.44:1 | AA large text | Lc 23.8 | Dividers and decoration only |
| #33678A text on white | 6.09:1 | AA | Lc 80.2 | Fine for body text |
| #33678A text on black | 3.44:1 | AA large text | Lc -21.6 | 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 700.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CDDBE6
oklch(88.4% 0.021 241.4)
-
Step 300
300
#ABC4D7
oklch(80.8% 0.038 240.8)
-
Step 400
400
#7EA6C3
oklch(70.6% 0.061 240.2)
-
Step 500
500
#5C90B4
oklch(63.1% 0.078 239.9)
-
Step 600
600
#417AA0
oklch(55.7% 0.084 239.8)
-
Step 700
700 (this color)
#33678A
oklch(49.4% 0.079 240.4)
-
Step 800
800
#2A536F
oklch(42.5% 0.066 240.5)
-
Step 900
900
#27455A
oklch(37.7% 0.051 240.5)
-
Step 950
950
#172935
oklch(27.1% 0.033 238.8)
#33678A 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) | #57678C | 0.042 |
| Deuteranopia (no green cones) | #4B5E89 | 0.035 |
| Tritanopia (no blue cones) | #007073 | 0.059 |
| Achromatopsia (no color) | #626262 | 0.079 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33678A
#33678A
oklch(49.4% 0.079 240.4)
- #825630
#825630
oklch(49.3% 0.079 60.2)
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 #33678A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.015
- Peacock Blue #016795 ΔE 0.029
- Dusky Blue #475F94 ΔE 0.037
- Ocean Blue #03719C ΔE 0.038
- Light Navy Blue #2E5A88 ΔE 0.040
- Sea Blue #047495 ΔE 0.040
- Denim Blue #3B5B92 ΔE 0.041
- Muted Blue #3B719F ΔE 0.042
Use #33678A 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.