#334C67
Closest named color: Dark Grey Blue (#29465B). oklch(40.8% 0.055 251.1), rgb(51, 76, 103).
Aa
White text reads best on this color (8.85:1).
About this color
#334C67 is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.055 and its hue 251°. 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 8.85:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.37:1 |
| White text | 8.85:1 |
Values
| HEX | #334C67 |
| RGB | rgb(51, 76, 103) |
| HSL | hsl(211, 34%, 30%) |
| OKLCH | oklch(40.8% 0.055 251.1) |
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 #334C67 | 8.85:1 | AAA | Lc -94.7 | Preferred for body text |
| Black text on #334C67 | 2.37:1 | Fails | Lc 13.8 | Not readable |
| #334C67 text on white | 8.85:1 | AAA | Lc 90.2 | Preferred for body text |
| #334C67 text on black | 2.37:1 | Fails | Lc -12.1 | 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 800.
-
Step 50
50
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EAF0
oklch(93.5% 0.01 252.8)
-
Step 200
200
#D1DAE5
oklch(88.5% 0.018 253.4)
-
Step 300
300
#B2C3D5
oklch(81% 0.032 249.7)
-
Step 400
400
#89A3C0
oklch(70.6% 0.052 251.4)
-
Step 500
500
#6C8DB0
oklch(63.2% 0.065 250.4)
-
Step 600
600
#53769C
oklch(55.5% 0.072 251.2)
-
Step 700
700
#446385
oklch(49% 0.066 251.5)
-
Step 800
800 (this color)
#334C67
oklch(40.8% 0.055 251.1)
-
Step 900
900
#304358
oklch(37.6% 0.044 251.5)
-
Step 950
950
#1D2733
oklch(26.9% 0.027 253.3)
#334C67 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) | #414D68 | 0.020 |
| Deuteranopia (no green cones) | #3B4866 | 0.015 |
| Tritanopia (no blue cones) | #1C5255 | 0.048 |
| Achromatopsia (no color) | #4A4A4A | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334C67
#334C67
oklch(40.8% 0.055 251.1)
- #5D4527
#5D4527
oklch(40.9% 0.055 71.4)
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 #334C67, 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 0.041
- Dark Slate Gray #2F4F4F ΔE 0.046
- YInMn Blue #415A77 ΔE 0.051
- Light Navy #155084 ΔE 0.052
- Deep Sea Blue #015482 ΔE 0.052
- Deep Teal #00555A ΔE 0.054
- Twilight Blue #0A437A ΔE 0.060
Use #334C67 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.