#334351
Closest named color: Charcoal (#264653). oklch(37.5% 0.032 245.2), rgb(51, 67, 81).
Aa
White text reads best on this color (10.18:1).
About this color
#334351 is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.032 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.017 away. White text reads best on it, at 10.18:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.032) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.06:1 |
| White text | 10.18:1 |
Values
| HEX | #334351 |
| RGB | rgb(51, 67, 81) |
| HSL | hsl(208, 23%, 26%) |
| OKLCH | oklch(37.5% 0.032 245.2) |
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 #334351 | 10.18:1 | AAA | Lc -97.7 | Preferred for body text |
| Black text on #334351 | 2.06:1 | Fails | Lc 10.3 | Not readable |
| #334351 text on white | 10.18:1 | AAA | Lc 93.6 | Preferred for body text |
| #334351 text on black | 2.06:1 | Fails | Lc -8.9 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D2DAE1
oklch(88.4% 0.013 244.3)
-
Step 300
300
#B4C3CF
oklch(80.9% 0.024 242)
-
Step 400
400
#8DA4B7
oklch(70.7% 0.038 243.2)
-
Step 500
500
#718DA5
oklch(63.1% 0.048 244.5)
-
Step 600
600
#597791
oklch(55.6% 0.053 245.1)
-
Step 700
700
#49647B
oklch(49.1% 0.049 244.7)
-
Step 800
800
#3C5264
oklch(42.8% 0.04 243.6)
-
Step 900
900 (this color)
#334351
oklch(37.5% 0.032 245.2)
-
Step 950
950
#1E2830
oklch(27.1% 0.02 242.7)
#334351 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) | #3D4352 | 0.015 |
| Deuteranopia (no green cones) | #3A4051 | 0.013 |
| Tritanopia (no blue cones) | #294648 | 0.025 |
| Achromatopsia (no color) | #414141 | 0.032 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334351
#334351
oklch(37.5% 0.032 245.2)
- #4D3E2F
#4D3E2F
oklch(37.5% 0.032 66.6)
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 #334351, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.017
- Dark Grey Blue #29465B ΔE 0.020
- Charcoal Grey #3C4142 ΔE 0.027
- Onyx #343A40 ΔE 0.035
- Dark Blue Grey #1F3B4D ΔE 0.039
- Dark Slate Gray #2F4F4F ΔE 0.041
- Dark Teal #014D4E ΔE 0.050
- Midnight Green #073B4C ΔE 0.055
Use #334351 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.