#33658E
Closest named color: Denim (#3B638C). oklch(49.1% 0.085 245.5), rgb(51, 101, 142).
Aa
White text reads best on this color (6.18:1).
About this color
#33658E is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.085 and its hue 246°. Its hue sits on the cool side of the wheel. The nearest named color is Denim (#3B638C), ΔE 0.009 away. White text reads best on it, at 6.18:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.085) |
| Temperature | cool |
| Nearest name | Denim (#3B638C) |
| Black text | 3.39:1 |
| White text | 6.18:1 |
Values
| HEX | #33658E |
| RGB | rgb(51, 101, 142) |
| HSL | hsl(207, 47%, 38%) |
| OKLCH | oklch(49.1% 0.085 245.5) |
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 #33658E | 6.18:1 | AA | Lc -85.8 | Fine for body text |
| Black text on #33658E | 3.39:1 | AA large text | Lc 23.4 | Dividers and decoration only |
| #33658E text on white | 6.18:1 | AA | Lc 80.7 | Fine for body text |
| #33658E text on black | 3.39:1 | AA large text | Lc -21.2 | 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
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CDDBE8
oklch(88.5% 0.023 246.1)
-
Step 300
300
#ABC4DA
oklch(80.9% 0.041 244.9)
-
Step 400
400
#7EA5C8
oklch(70.6% 0.067 246)
-
Step 500
500
#5D8FBA
oklch(63.2% 0.085 245.6)
-
Step 600
600
#4278A6
oklch(55.6% 0.092 246.2)
-
Step 700
700 (this color)
#33658E
oklch(49.1% 0.085 245.5)
-
Step 800
800
#2B5373
oklch(42.8% 0.07 244.6)
-
Step 900
900
#27445D
oklch(37.6% 0.056 246)
-
Step 950
950
#182837
oklch(27% 0.035 247.7)
#33658E 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) | #536690 | 0.037 |
| Deuteranopia (no green cones) | #475D8D | 0.029 |
| Tritanopia (no blue cones) | #006F73 | 0.067 |
| Achromatopsia (no color) | #616161 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33658E
#33658E
oklch(49.1% 0.085 245.5)
- #815626
#815626
oklch(49.1% 0.085 66.3)
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 #33658E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim #3B638C ΔE 0.009
- Peacock Blue #016795 ΔE 0.026
- Dusky Blue #475F94 ΔE 0.030
- Denim Blue #3B5B92 ΔE 0.032
- Light Navy Blue #2E5A88 ΔE 0.034
- Ocean Blue #03719C ΔE 0.039
- Muted Blue #3B719F ΔE 0.042
- YInMn Blue #415A77 ΔE 0.043
Use #33658E 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.