#4751BC
Closest named color: Iris (#6258C4). oklch(48.9% 0.166 274.4), rgb(71, 81, 188).
Aa
White text reads best on this color (6.62:1).
About this color
#4751BC is a medium-dark, vivid blue. In OKLCH its lightness is 49%, its chroma 0.166 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.047 away. White text reads best on it, at 6.62:1.
| Hue family | Blues |
| Lightness | medium-dark (49%) |
| Chroma | vivid (0.166) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.17:1 |
| White text | 6.62:1 |
Values
| HEX | #4751BC |
| RGB | rgb(71, 81, 188) |
| HSL | hsl(235, 47%, 51%) |
| OKLCH | oklch(48.9% 0.166 274.4) |
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 #4751BC | 6.62:1 | AA | Lc -87.4 | Fine for body text |
| Black text on #4751BC | 3.17:1 | AA large text | Lc 21.7 | Dividers and decoration only |
| #4751BC text on white | 6.62:1 | AA | Lc 82.4 | Fine for body text |
| #4751BC text on black | 3.17:1 | AA large text | Lc -19.5 | 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
#F3F5FD
oklch(97.1% 0.011 274.9)
-
Step 100
100
#E5E9FA
oklch(93.6% 0.023 275.4)
-
Step 200
200
#D0D8F7
oklch(88.6% 0.044 274)
-
Step 300
300
#B0BDF5
oklch(80.8% 0.081 274.3)
-
Step 400
400
#8999F0
oklch(70.7% 0.128 274.7)
-
Step 500
500
#6D7DEB
oklch(63% 0.165 274.5)
-
Step 600
600
#5764DA
oklch(55.7% 0.179 274.3)
-
Step 700
700 (this color)
#4751BC
oklch(48.9% 0.166 274.4)
-
Step 800
800
#3B4499
oklch(42.8% 0.138 274.5)
-
Step 900
900
#323A79
oklch(37.7% 0.106 274.7)
-
Step 950
950
#1D2247
oklch(26.9% 0.068 275)
#4751BC 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) | #0062C0 | 0.058 |
| Deuteranopia (no green cones) | #0058BA | 0.052 |
| Tritanopia (no blue cones) | #006B7E | 0.142 |
| Achromatopsia (no color) | #5D5D5D | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4751BC
#4751BC
oklch(48.9% 0.166 274.4)
- #725E00
#725E00
oklch(48.7% 0.1 94.4)
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 #4751BC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.047
- Blue With A Hint Of Purple #533CC6 ΔE 0.049
- Warm Blue #4B57DB ΔE 0.050
- Bluey Purple #6241C7 ΔE 0.053
- Blurple #5539CC ΔE 0.057
- Blue Blue #2242C7 ΔE 0.061
- Majorelle Blue #3F37C9 ΔE 0.061
- Slate Blue #6A5ACD ΔE 0.064
Use #4751BC 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.