#4C5BB2
Closest named color: Iris (#6258C4). oklch(50.4% 0.138 273.1), rgb(76, 91, 178).
Aa
White text reads best on this color (6.09:1).
About this color
#4C5BB2 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 50%, its chroma 0.138 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.043 away. White text reads best on it, at 6.09:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | moderately saturated (0.138) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.44:1 |
| White text | 6.09:1 |
Values
| HEX | #4C5BB2 |
| RGB | rgb(76, 91, 178) |
| HSL | hsl(231, 40%, 50%) |
| OKLCH | oklch(50.4% 0.138 273.1) |
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 #4C5BB2 | 6.09:1 | AA | Lc -85.4 | Fine for body text |
| Black text on #4C5BB2 | 3.44:1 | AA large text | Lc 23.9 | Dividers and decoration only |
| #4C5BB2 text on white | 6.09:1 | AA | Lc 80.2 | Fine for body text |
| #4C5BB2 text on black | 3.44:1 | AA large text | Lc -21.6 | 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
#E5E9F7
oklch(93.5% 0.019 273.2)
-
Step 200
200
#D1D8F2
oklch(88.5% 0.037 273.7)
-
Step 300
300
#B2BEED
oklch(80.8% 0.068 273.6)
-
Step 400
400
#8B9CE3
oklch(70.8% 0.106 273.1)
-
Step 500
500
#6F82DB
oklch(63.2% 0.135 272.9)
-
Step 600
600
#5869C9
oklch(55.6% 0.149 273.1)
-
Step 700
700 (this color)
#4C5BB2
oklch(50.4% 0.138 273.1)
-
Step 800
800
#3B488D
oklch(42.8% 0.114 272.7)
-
Step 900
900
#333D70
oklch(37.8% 0.088 273.2)
-
Step 950
950
#1E2442
oklch(27.1% 0.056 273.5)
#4C5BB2 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) | #3067B5 | 0.039 |
| Deuteranopia (no green cones) | #215EB0 | 0.042 |
| Tritanopia (no blue cones) | #0A6E7E | 0.122 |
| Achromatopsia (no color) | #626262 | 0.138 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C5BB2
#4C5BB2
oklch(50.4% 0.138 273.1)
- #796200
#796200
oklch(50.4% 0.103 92.8)
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 #4C5BB2, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.043
- French Blue #436BAD ΔE 0.046
- Mid Blue #276AB3 ΔE 0.049
- Dusky Blue #475F94 ΔE 0.052
- Denim Blue #3B5B92 ΔE 0.057
- Slate Blue #6A5ACD ΔE 0.061
- Dark Periwinkle #665FD1 ΔE 0.062
- Twilight #4E518B ΔE 0.064
Use #4C5BB2 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.