#4757BF
Closest named color: Iris (#6258C4). oklch(50.2% 0.163 272.6), rgb(71, 87, 191).
Aa
White text reads best on this color (6.20:1).
About this color
#4757BF is a medium-dark, vivid blue. In OKLCH its lightness is 50%, its chroma 0.163 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Iris (#6258C4), ΔE 0.040 away. White text reads best on it, at 6.20:1.
| Hue family | Blues |
| Lightness | medium-dark (50%) |
| Chroma | vivid (0.163) |
| Temperature | cool |
| Nearest name | Iris (#6258C4) |
| Black text | 3.38:1 |
| White text | 6.20:1 |
Values
| HEX | #4757BF |
| RGB | rgb(71, 87, 191) |
| HSL | hsl(232, 48%, 51%) |
| OKLCH | oklch(50.2% 0.163 272.6) |
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 #4757BF | 6.20:1 | AA | Lc -85.8 | Fine for body text |
| Black text on #4757BF | 3.38:1 | AA large text | Lc 23.5 | Dividers and decoration only |
| #4757BF text on white | 6.20:1 | AA | Lc 80.6 | Fine for body text |
| #4757BF text on black | 3.38:1 | AA large text | Lc -21.2 | 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
#E4E9FA
oklch(93.5% 0.024 272.8)
-
Step 200
200
#CFD8F7
oklch(88.5% 0.044 272.7)
-
Step 300
300
#AFBEF4
oklch(80.9% 0.078 272.5)
-
Step 400
400
#869AEF
oklch(70.6% 0.127 272.7)
-
Step 500
500
#6A7FEA
oklch(63.1% 0.161 272.6)
-
Step 600
600
#5366D8
oklch(55.7% 0.175 272.3)
-
Step 700
700 (this color)
#4757BF
oklch(50.2% 0.163 272.6)
-
Step 800
800
#384597
oklch(42.7% 0.134 272.6)
-
Step 900
900
#303B79
oklch(37.8% 0.106 272.8)
-
Step 950
950
#1C2347
oklch(27.1% 0.067 272.9)
#4757BF 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) | #0A66C3 | 0.052 |
| Deuteranopia (no green cones) | #005CBD | 0.049 |
| Tritanopia (no blue cones) | #007082 | 0.139 |
| Achromatopsia (no color) | #616161 | 0.163 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4757BF
#4757BF
oklch(50.2% 0.163 272.6)
- #796100
#796100
oklch(50.2% 0.103 91.9)
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 #4757BF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Iris #6258C4 ΔE 0.040
- Warm Blue #4B57DB ΔE 0.044
- Slate Blue #6A5ACD ΔE 0.057
- Dark Periwinkle #665FD1 ΔE 0.057
- Mid Blue #276AB3 ΔE 0.060
- Bluey Purple #6241C7 ΔE 0.060
- Blue With A Hint Of Purple #533CC6 ΔE 0.060
- Light Indigo #6D5ACF ΔE 0.062
Use #4757BF 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.