#334266
Closest named color: Dark Grey Blue (#29465B). oklch(38.3% 0.065 266.2), rgb(51, 66, 102).
Aa
White text reads best on this color (9.94:1).
About this color
#334266 is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.065 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.029 away. White text reads best on it, at 9.94:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.065) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.11:1 |
| White text | 9.94:1 |
Values
| HEX | #334266 |
| RGB | rgb(51, 66, 102) |
| HSL | hsl(222, 33%, 30%) |
| OKLCH | oklch(38.3% 0.065 266.2) |
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 #334266 | 9.94:1 | AAA | Lc -97.1 | Preferred for body text |
| Black text on #334266 | 2.11:1 | Fails | Lc 10.9 | Not readable |
| #334266 text on white | 9.94:1 | AAA | Lc 93.0 | Preferred for body text |
| #334266 text on black | 2.11:1 | Fails | Lc -9.5 | 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
#F3F5FA
oklch(97% 0.007 268.5)
-
Step 100
100
#E5EAF4
oklch(93.6% 0.015 264.5)
-
Step 200
200
#D1D9EC
oklch(88.5% 0.028 267.5)
-
Step 300
300
#B2C1E1
oklch(81% 0.048 265.4)
-
Step 400
400
#8AA0D2
oklch(70.7% 0.078 266)
-
Step 500
500
#6D88C6
oklch(63.2% 0.099 265.7)
-
Step 600
600
#5671B3
oklch(55.8% 0.108 266.1)
-
Step 700
700
#465E9A
oklch(49.1% 0.101 266.3)
-
Step 800
800
#3A4D7D
oklch(42.8% 0.084 266.6)
-
Step 900
900 (this color)
#334266
oklch(38.3% 0.065 266.2)
-
Step 950
950
#1D263B
oklch(27.1% 0.041 266)
#334266 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) | #354567 | 0.010 |
| Deuteranopia (no green cones) | #2F4165 | 0.007 |
| Tritanopia (no blue cones) | #1F4A4F | 0.059 |
| Achromatopsia (no color) | #434343 | 0.065 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334266
#334266
oklch(38.3% 0.065 266.2)
- #524015
#524015
oklch(38.2% 0.064 85.9)
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 #334266, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.029
- Charcoal #264653 ΔE 0.043
- Twilight Blue #0A437A ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.055
- Prussian Blue #1D3557 ΔE 0.057
- Marine Blue #01386A ΔE 0.061
- Light Navy #155084 ΔE 0.061
- Charcoal Grey #3C4142 ΔE 0.062
Use #334266 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.