#4A51AF
Closest named color: Iris (#6258C4). oklch(48.1% 0.148 276.1), rgb(74, 81, 175).
Aa
White text reads best on this color (6.80:1).
About this color
#4A51AF is a medium-dark, vivid blue. In OKLCH its lightness is 48%, its chroma 0.148 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.053 away. White text reads best on it, at 6.80:1.
| Hue family | Blues |
| Lightness | medium-dark (48%) |
| Chroma | vivid (0.148) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.08:1 |
| White text | 6.80:1 |
Values
| HEX | #4A51AF |
| RGB | rgb(74, 81, 175) |
| HSL | hsl(236, 41%, 49%) |
| OKLCH | oklch(48.1% 0.148 276.1) |
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 #4A51AF | 6.80:1 | AA | Lc -88.2 | Fine for body text |
| Black text on #4A51AF | 3.08:1 | AA large text | Lc 20.9 | Dividers and decoration only |
| #4A51AF text on white | 6.80:1 | AA | Lc 83.2 | Fine for body text |
| #4A51AF text on black | 3.08:1 | AA large text | Lc -18.7 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E6E9F8
oklch(93.6% 0.02 276.9)
-
Step 200
200
#D2D8F4
oklch(88.6% 0.039 276)
-
Step 300
300
#B4BDEF
oklch(80.9% 0.071 276.7)
-
Step 400
400
#8D9AE7
oklch(70.7% 0.114 275.8)
-
Step 500
500
#737FE0
oklch(63.1% 0.145 276.1)
-
Step 600
600
#5D66CE
oklch(55.6% 0.158 276.2)
-
Step 700
700 (this color)
#4A51AF
oklch(48.1% 0.148 276.1)
-
Step 800
800
#3F4590
oklch(42.6% 0.122 276.5)
-
Step 900
900
#353B73
oklch(37.7% 0.095 276.2)
-
Step 950
950
#1F2343
oklch(27% 0.059 276.3)
#4A51AF 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) | #185FB2 | 0.053 |
| Deuteranopia (no green cones) | #0057AD | 0.057 |
| Tritanopia (no blue cones) | #0A6778 | 0.130 |
| Achromatopsia (no color) | #5B5B5B | 0.148 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4A51AF
#4A51AF
oklch(48.1% 0.148 276.1)
- #6E5D00
#6E5D00
oklch(48.1% 0.099 96.7)
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 #4A51AF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.053
- Blueberry #464196 ΔE 0.056
- Twilight #4E518B ΔE 0.058
- Blue With A Hint Of Purple #533CC6 ΔE 0.060
- Denim Blue #3B5B92 ΔE 0.060
- Bluey Purple #6241C7 ΔE 0.062
- Dusky Blue #475F94 ΔE 0.062
- Blurple #5539CC ΔE 0.069
Use #4A51AF 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.