#33446E
Closest named color: Dark Grey Blue (#29465B). oklch(39.3% 0.075 266.3), rgb(51, 68, 110).
Aa
White text reads best on this color (9.57:1).
About this color
#33446E is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.075 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.038 away. White text reads best on it, at 9.57:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.075) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.19:1 |
| White text | 9.57:1 |
Values
| HEX | #33446E |
| RGB | rgb(51, 68, 110) |
| HSL | hsl(223, 37%, 32%) |
| OKLCH | oklch(39.3% 0.075 266.3) |
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 #33446E | 9.57:1 | AAA | Lc -96.3 | Preferred for body text |
| Black text on #33446E | 2.19:1 | Fails | Lc 11.9 | Not readable |
| #33446E text on white | 9.57:1 | AAA | Lc 92.1 | Preferred for body text |
| #33446E text on black | 2.19:1 | Fails | Lc -10.3 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5EAF5
oklch(93.6% 0.016 266.3)
-
Step 200
200
#D0D9EE
oklch(88.5% 0.031 267.2)
-
Step 300
300
#B0C0E6
oklch(80.8% 0.057 267.2)
-
Step 400
400
#879FD9
oklch(70.6% 0.09 266.8)
-
Step 500
500
#6987CF
oklch(63.2% 0.114 266)
-
Step 600
600
#516FBC
oklch(55.5% 0.125 266.4)
-
Step 700
700
#425DA2
oklch(49.2% 0.115 266.2)
-
Step 800
800
#364C83
oklch(42.7% 0.096 266)
-
Step 900
900 (this color)
#33446E
oklch(39.3% 0.075 266.3)
-
Step 950
950
#1C263E
oklch(27.2% 0.047 266.1)
#33446E 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) | #344870 | 0.012 |
| Deuteranopia (no green cones) | #2D436D | 0.009 |
| Tritanopia (no blue cones) | #184D53 | 0.068 |
| Achromatopsia (no color) | #454545 | 0.075 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #33446E
#33446E
oklch(39.3% 0.075 266.3)
- #57420A
#57420A
oklch(39.1% 0.075 86.2)
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 #33446E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.038
- Twilight Blue #0A437A ΔE 0.042
- Light Navy #155084 ΔE 0.049
- Charcoal #264653 ΔE 0.053
- Cobalt #1E488F ΔE 0.057
- Deep Sea Blue #015482 ΔE 0.057
- Dusk Blue #26538D ΔE 0.061
- Marine Blue #01386A ΔE 0.063
Use #33446E 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.