#4A59AB
Closest named color: Dusky Blue (#475F94). oklch(49.4% 0.131 272.9), rgb(74, 89, 171).
Aa
White text reads best on this color (6.34:1).
About this color
#4A59AB is a medium-dark, moderately saturated blue. In OKLCH its lightness is 49%, its chroma 0.131 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Dusky Blue (#475F94), ΔE 0.044 away. White text reads best on it, at 6.34:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | moderately saturated (0.131) |
| Temperature | cool |
| Nearest name | Dusky Blue (#475F94) |
| Black text | 3.30:1 |
| White text | 6.34:1 |
Values
| HEX | #4A59AB |
| RGB | rgb(74, 89, 171) |
| HSL | hsl(231, 40%, 48%) |
| OKLCH | oklch(49.4% 0.131 272.9) |
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 #4A59AB | 6.34:1 | AA | Lc -86.5 | Fine for body text |
| Black text on #4A59AB | 3.30:1 | AA large text | Lc 22.7 | Dividers and decoration only |
| #4A59AB text on white | 6.34:1 | AA | Lc 81.4 | Fine for body text |
| #4A59AB text on black | 3.30:1 | AA large text | Lc -20.5 | 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
#F3F5FB
oklch(97% 0.008 271.3)
-
Step 100
100
#E5E9F7
oklch(93.5% 0.019 273.2)
-
Step 200
200
#D1D8F1
oklch(88.5% 0.035 273.2)
-
Step 300
300
#B3BFEA
oklch(81% 0.062 272.7)
-
Step 400
400
#8B9CE0
oklch(70.6% 0.102 272.8)
-
Step 500
500
#7082D7
oklch(63% 0.129 273.1)
-
Step 600
600
#596AC5
oklch(55.6% 0.142 273)
-
Step 700
700 (this color)
#4A59AB
oklch(49.4% 0.131 272.9)
-
Step 800
800
#3C488A
oklch(42.6% 0.11 273.1)
-
Step 900
900
#333D6E
oklch(37.7% 0.085 273)
-
Step 950
950
#1E2440
oklch(27% 0.053 273.2)
#4A59AB 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) | #3264AE | 0.036 |
| Deuteranopia (no green cones) | #255BA9 | 0.039 |
| Tritanopia (no blue cones) | #116B7A | 0.115 |
| Achromatopsia (no color) | #5F5F5F | 0.131 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A59AB
#4A59AB
oklch(49.4% 0.131 272.9)
- #755F00
#755F00
oklch(49.3% 0.101 93.1)
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 #4A59AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusky Blue #475F94 ΔE 0.044
- Denim Blue #3B5B92 ΔE 0.046
- French Blue #436BAD ΔE 0.049
- Mid Blue #276AB3 ΔE 0.052
- Twilight #4E518B ΔE 0.052
- Iris #6258C4 ΔE 0.053
- Denim #3B638C ΔE 0.065
- Dusk #4E5481 ΔE 0.067
Use #4A59AB 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.