#33668A
Closest named color: Denim (#3B638C). oklch(49.1% 0.08 241.6), rgb(51, 102, 138).
Aa
White text reads best on this color (6.16:1).
About this color
#33668A is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.080 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.012 away. White text reads best on it, at 6.16:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.40:1 |
| White text | 6.16:1 |
Values
| HEX | #33668A |
| RGB | rgb(51, 102, 138) |
| HSL | hsl(205, 46%, 37%) |
| OKLCH | oklch(49.1% 0.08 241.6) |
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 #33668A | 6.16:1 | AA | Lc -85.7 | Fine for body text |
| Black text on #33668A | 3.40:1 | AA large text | Lc 23.5 | Dividers and decoration only |
| #33668A text on white | 6.16:1 | AA | Lc 80.6 | Fine for body text |
| #33668A text on black | 3.40:1 | AA large text | Lc -21.3 | 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
#ABC4D8
oklch(80.8% 0.039 242.2)
-
Step 400
400
#7EA6C4
oklch(70.7% 0.062 241.1)
-
Step 500
500
#5D90B5
oklch(63.2% 0.078 241.1)
-
Step 600
600
#4179A1
oklch(55.5% 0.086 241.7)
-
Step 700
700 (this color)
#33668A
oklch(49.1% 0.08 241.6)
-
Step 800
800
#2B5370
oklch(42.6% 0.066 242)
-
Step 900
900
#27455B
oklch(37.7% 0.052 241.8)
-
Step 950
950
#182835
oklch(26.9% 0.033 243.9)
#33668A 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) | #56668C | 0.041 |
| Deuteranopia (no green cones) | #4A5D89 | 0.034 |
| Tritanopia (no blue cones) | #006F72 | 0.061 |
| Achromatopsia (no color) | #616161 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33668A
#33668A
oklch(49.1% 0.08 241.6)
- #81562E
#81562E
oklch(49.2% 0.079 62.1)
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 #33668A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.012
- Peacock Blue #016795 ΔE 0.029
- Dusky Blue #475F94 ΔE 0.036
- Light Navy Blue #2E5A88 ΔE 0.037
- Denim Blue #3B5B92 ΔE 0.038
- Ocean Blue #03719C ΔE 0.040
- YInMn Blue #415A77 ΔE 0.041
- Sea Blue #047495 ΔE 0.043
Use #33668A 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.