#334458
Closest named color: Dark Grey Blue (#29465B). oklch(38.1% 0.041 252.9), rgb(51, 68, 88).
Aa
White text reads best on this color (9.95:1).
About this color
#334458 is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.041 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.013 away. White text reads best on it, at 9.95:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.041) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.10:1 |
| White text | 9.95:1 |
Values
| HEX | #334458 |
| RGB | rgb(51, 68, 88) |
| HSL | hsl(212, 27%, 27%) |
| OKLCH | oklch(38.1% 0.041 252.9) |
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 #334458 | 9.95:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #334458 | 2.10:1 | Fails | Lc 10.9 | Not readable |
| #334458 text on white | 9.95:1 | AAA | Lc 93.1 | Preferred for body text |
| #334458 text on black | 2.10:1 | Fails | Lc -9.4 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E6EAF0
oklch(93.6% 0.009 258.3)
-
Step 200
200
#D1DAE4
oklch(88.4% 0.017 250.9)
-
Step 300
300
#B3C2D4
oklch(80.8% 0.03 253)
-
Step 400
400
#8BA3BF
oklch(70.7% 0.049 252.5)
-
Step 500
500
#6F8CAF
oklch(63.1% 0.062 253.4)
-
Step 600
600
#56769A
oklch(55.6% 0.067 251.9)
-
Step 700
700
#476384
oklch(49.2% 0.063 253.1)
-
Step 800
800
#3A516B
oklch(42.7% 0.052 252.1)
-
Step 900
900 (this color)
#334458
oklch(38.1% 0.041 252.9)
-
Step 950
950
#1D2733
oklch(26.9% 0.027 253.3)
#334458 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) | #3C4559 | 0.014 |
| Deuteranopia (no green cones) | #384158 | 0.011 |
| Tritanopia (no blue cones) | #26484B | 0.034 |
| Achromatopsia (no color) | #434343 | 0.041 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334458
#334458
oklch(38.1% 0.041 252.9)
- #503F2A
#503F2A
oklch(38% 0.041 72)
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 #334458, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.013
- Charcoal #264653 ΔE 0.020
- Charcoal Grey #3C4142 ΔE 0.037
- Dark Slate Gray #2F4F4F ΔE 0.044
- Dark Blue Grey #1F3B4D ΔE 0.044
- Onyx #343A40 ΔE 0.045
- Dark Teal #014D4E ΔE 0.054
- Midnight Green #073B4C ΔE 0.059
Use #334458 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.