#4C669B
Closest named color: Dusky Blue (#475F94). oklch(51.4% 0.09 263.6), rgb(76, 102, 155).
Aa
White text reads best on this color (5.70:1).
About this color
#4C669B is a medium-dark, moderately saturated blue. In OKLCH its lightness is 51%, its chroma 0.090 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.023 away. White text reads best on it, at 5.70:1.
| Hue family | Blues |
| Lightness | medium-dark (51%) |
| Chroma | moderately saturated (0.090) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.68:1 |
| White text | 5.70:1 |
Values
| HEX | #4C669B |
| RGB | rgb(76, 102, 155) |
| HSL | hsl(220, 34%, 45%) |
| OKLCH | oklch(51.4% 0.09 263.6) |
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 #4C669B | 5.70:1 | AA | Lc -83.7 | Fine for body text |
| Black text on #4C669B | 3.68:1 | AA large text | Lc 25.6 | Dividers and decoration only |
| #4C669B text on white | 5.70:1 | AA | Lc 78.4 | Fine for body text |
| #4C669B text on black | 3.68:1 | AA large text | Lc -23.4 | Dividers and decoration only |
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 700.
-
Step 50
50
#F3F5F9
oklch(97% 0.006 264.5)
-
Step 100
100
#E5EAF3
oklch(93.6% 0.013 262.4)
-
Step 200
200
#D1D9EA
oklch(88.4% 0.025 265.6)
-
Step 300
300
#B2C1DE
oklch(80.9% 0.044 263.6)
-
Step 400
400
#8AA1CD
oklch(70.7% 0.07 263.2)
-
Step 500
500
#6D89C0
oklch(63.1% 0.089 263.3)
-
Step 600
600
#5672AC
oklch(55.6% 0.097 263.9)
-
Step 700
700 (this color)
#4C669B
oklch(51.4% 0.09 263.6)
-
Step 800
800
#3A4E78
oklch(42.7% 0.075 264.1)
-
Step 900
900
#314161
oklch(37.7% 0.059 263.5)
-
Step 950
950
#1D2639
oklch(27% 0.038 264.5)
#4C669B 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) | #526A9D | 0.015 |
| Deuteranopia (no green cones) | #49639A | 0.010 |
| Tritanopia (no blue cones) | #297179 | 0.080 |
| Achromatopsia (no color) | #666666 | 0.090 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C669B
#4C669B
oklch(51.4% 0.09 263.6)
- #806220
#806220
oklch(51.4% 0.09 83.5)
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 #4C669B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.023
- French Blue #436BAD ΔE 0.030
- Denim #3B638C ΔE 0.033
- Muted Blue #3B719F ΔE 0.033
- Flat Blue #3C73A8 ΔE 0.039
- Denim Blue #3B5B92 ΔE 0.041
- Dull Blue #49759C ΔE 0.043
- Mid Blue #276AB3 ΔE 0.048
Use #4C669B 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.