#334D69
Closest named color: Dark Grey Blue (#29465B). oklch(41.2% 0.057 251.1), rgb(51, 77, 105).
Aa
White text reads best on this color (8.72:1).
About this color
#334D69 is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.057 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.033 away. White text reads best on it, at 8.72:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.057) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.40:1 |
| White text | 8.72:1 |
Values
| HEX | #334D69 |
| RGB | rgb(51, 77, 105) |
| HSL | hsl(211, 35%, 31%) |
| OKLCH | oklch(41.2% 0.057 251.1) |
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 #334D69 | 8.72:1 | AAA | Lc -94.3 | Preferred for body text |
| Black text on #334D69 | 2.40:1 | Fails | Lc 14.1 | Not readable |
| #334D69 text on white | 8.72:1 | AAA | Lc 89.8 | Fine for body text |
| #334D69 text on black | 2.40:1 | Fails | Lc -12.4 | 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 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
#D0DAE5
oklch(88.4% 0.019 250.6)
-
Step 300
300
#B1C3D6
oklch(81% 0.033 249.7)
-
Step 400
400
#88A3C1
oklch(70.6% 0.053 251.3)
-
Step 500
500
#6B8DB2
oklch(63.2% 0.068 251)
-
Step 600
600
#52769E
oklch(55.5% 0.075 251.8)
-
Step 700
700
#426387
oklch(49% 0.07 251.4)
-
Step 800
800 (this color)
#334D69
oklch(41.2% 0.057 251.1)
-
Step 900
900
#304359
oklch(37.7% 0.045 252.6)
-
Step 950
950
#1C2734
oklch(26.9% 0.029 253)
#334D69 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) | #424E6A | 0.021 |
| Deuteranopia (no green cones) | #3B4968 | 0.015 |
| Tritanopia (no blue cones) | #1A5357 | 0.048 |
| Achromatopsia (no color) | #4B4B4B | 0.057 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #334D69
#334D69
oklch(41.2% 0.057 251.1)
- #5E4627
#5E4627
oklch(41.3% 0.056 72.3)
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 #334D69, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.033
- Charcoal #264653 ΔE 0.045
- YInMn Blue #415A77 ΔE 0.048
- Dark Slate Gray #2F4F4F ΔE 0.048
- Light Navy #155084 ΔE 0.049
- Deep Sea Blue #015482 ΔE 0.049
- Deep Teal #00555A ΔE 0.054
- Light Navy Blue #2E5A88 ΔE 0.057
Use #334D69 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.