#33668E
Closest named color: Denim (#3B638C). oklch(49.3% 0.085 244.4), rgb(51, 102, 142).
Aa
White text reads best on this color (6.11:1).
About this color
#33668E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.085 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.011 away. White text reads best on it, at 6.11:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.43:1 |
| White text | 6.11:1 |
Values
| HEX | #33668E |
| RGB | rgb(51, 102, 142) |
| HSL | hsl(206, 47%, 38%) |
| OKLCH | oklch(49.3% 0.085 244.4) |
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 #33668E | 6.11:1 | AA | Lc -85.5 | Fine for body text |
| Black text on #33668E | 3.43:1 | AA large text | Lc 23.7 | Dividers and decoration only |
| #33668E text on white | 6.11:1 | AA | Lc 80.4 | Fine for body text |
| #33668E text on black | 3.43:1 | AA large text | Lc -21.5 | 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
#CDDBE7
oklch(88.4% 0.022 243.8)
-
Step 300
300
#ABC4DA
oklch(80.9% 0.041 244.9)
-
Step 400
400
#7EA6C7
oklch(70.8% 0.065 243.8)
-
Step 500
500
#5C8FB9
oklch(63.1% 0.084 244.5)
-
Step 600
600
#4179A5
oklch(55.7% 0.091 244.2)
-
Step 700
700 (this color)
#33668E
oklch(49.3% 0.085 244.4)
-
Step 800
800
#2B5373
oklch(42.8% 0.07 244.6)
-
Step 900
900
#27455D
oklch(37.8% 0.055 244.1)
-
Step 950
950
#172836
oklch(26.9% 0.035 244.4)
#33668E 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) | #546790 | 0.038 |
| Deuteranopia (no green cones) | #485E8D | 0.030 |
| Tritanopia (no blue cones) | #007074 | 0.065 |
| Achromatopsia (no color) | #626262 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33668E
#33668E
oklch(49.3% 0.085 244.4)
- #825629
#825629
oklch(49.2% 0.084 64.2)
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 #33668E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.011
- Peacock Blue #016795 ΔE 0.026
- Dusky Blue #475F94 ΔE 0.032
- Denim Blue #3B5B92 ΔE 0.035
- Light Navy Blue #2E5A88 ΔE 0.037
- Ocean Blue #03719C ΔE 0.037
- Muted Blue #3B719F ΔE 0.040
- Sea Blue #047495 ΔE 0.042
Use #33668E 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.