#354E63
Closest named color: Dark Grey Blue (#29465B). oklch(41.3% 0.047 244.6), rgb(53, 78, 99).
Aa
White text reads best on this color (8.67:1).
About this color
#354E63 is a dark, muted blue. In OKLCH its lightness is 41%, its chroma 0.047 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.032 away. White text reads best on it, at 8.67:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.42:1 |
| White text | 8.67:1 |
Values
| HEX | #354E63 |
| RGB | rgb(53, 78, 99) |
| HSL | hsl(207, 30%, 30%) |
| OKLCH | oklch(41.3% 0.047 244.6) |
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 #354E63 | 8.67:1 | AAA | Lc -94.2 | Preferred for body text |
| Black text on #354E63 | 2.42:1 | Fails | Lc 14.3 | Not readable |
| #354E63 text on white | 8.67:1 | AAA | Lc 89.7 | Fine for body text |
| #354E63 text on black | 2.42:1 | Fails | Lc -12.6 | 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
#E6EAEF
oklch(93.5% 0.008 253.9)
-
Step 200
200
#D1DAE3
oklch(88.4% 0.016 248)
-
Step 300
300
#B2C3D1
oklch(80.9% 0.027 242.8)
-
Step 400
400
#8AA4BA
oklch(70.6% 0.043 244)
-
Step 500
500
#6D8EA9
oklch(63.2% 0.055 243.5)
-
Step 600
600
#557795
oklch(55.5% 0.061 245.8)
-
Step 700
700
#45647F
oklch(49% 0.057 245.6)
-
Step 800
800 (this color)
#354E63
oklch(41.3% 0.047 244.6)
-
Step 900
900
#314454
oklch(37.7% 0.037 244.4)
-
Step 950
950
#1D2831
oklch(27.1% 0.023 243.4)
#354E63 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) | #454E64 | 0.022 |
| Deuteranopia (no green cones) | #3F4963 | 0.020 |
| Tritanopia (no blue cones) | #235355 | 0.039 |
| Achromatopsia (no color) | #4B4B4B | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #354E63
#354E63
oklch(41.3% 0.047 244.6)
- #5D4630
#5D4630
oklch(41.3% 0.046 64.7)
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 #354E63, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.032
- Dark Slate Gray #2F4F4F ΔE 0.037
- Charcoal #264653 ΔE 0.040
- Deep Teal #00555A ΔE 0.048
- YInMn Blue #415A77 ΔE 0.049
- Petrol #005F6A ΔE 0.057
- Deep Sea Blue #015482 ΔE 0.057
- Dark Teal #014D4E ΔE 0.058
Use #354E63 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.