#4C5FBF
Closest named color: Iris (#6258C4). oklch(52.1% 0.151 271.8), rgb(76, 95, 191).
Aa
White text reads best on this color (5.68:1).
About this color
#4C5FBF is a medium-dark, vivid blue. In OKLCH its lightness is 52%, its chroma 0.151 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.035 away. White text reads best on it, at 5.68:1.
| Hue family | Blues |
| Lightness | medium-dark (52%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.69:1 |
| White text | 5.68:1 |
Values
| HEX | #4C5FBF |
| RGB | rgb(76, 95, 191) |
| HSL | hsl(230, 47%, 52%) |
| OKLCH | oklch(52.1% 0.151 271.8) |
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 #4C5FBF | 5.68:1 | AA | Lc -83.4 | Fine for body text |
| Black text on #4C5FBF | 3.69:1 | AA large text | Lc 25.9 | Dividers and decoration only |
| #4C5FBF text on white | 5.68:1 | AA | Lc 78.1 | Fine for body text |
| #4C5FBF text on black | 3.69:1 | AA large text | Lc -23.6 | 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
#E5E9F9
oklch(93.6% 0.022 274.7)
-
Step 200
200
#CFD8F5
oklch(88.4% 0.041 271.9)
-
Step 300
300
#B0BEF1
oklch(80.8% 0.074 272.7)
-
Step 400
400
#879CEA
oklch(70.8% 0.117 271.7)
-
Step 500
500
#6A81E3
oklch(63.1% 0.149 271.6)
-
Step 600
600
#5368D1
oklch(55.6% 0.163 271.6)
-
Step 700
700 (this color)
#4C5FBF
oklch(52.1% 0.151 271.8)
-
Step 800
800
#384792
oklch(42.7% 0.124 271.7)
-
Step 900
900
#303C75
oklch(37.7% 0.098 272)
-
Step 950
950
#1C2444
oklch(27.1% 0.06 271.3)
#4C5FBF 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) | #2C6CC2 | 0.041 |
| Deuteranopia (no green cones) | #1262BD | 0.047 |
| Tritanopia (no blue cones) | #007586 | 0.131 |
| Achromatopsia (no color) | #676767 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4C5FBF
#4C5FBF
oklch(52.1% 0.151 271.8)
- #806600
#806600
oklch(52.1% 0.107 91.2)
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 #4C5FBF, closest first.
No curated palette has a color within ΔE 0.04 of #4C5FBF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.035
- Dark Periwinkle #665FD1 ΔE 0.046
- French Blue #436BAD ΔE 0.047
- Mid Blue #276AB3 ΔE 0.049
- Warm Blue #4B57DB ΔE 0.049
- Slate Blue #6A5ACD ΔE 0.049
- Light Indigo #6D5ACF ΔE 0.054
- Royal Blue #4169E1 ΔE 0.056
Use #4C5FBF 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.