#4957FF
Closest named color: Neon Blue (#4361EE). oklch(55.6% 0.245 271.8), rgb(73, 87, 255).
Aa
White text reads best on this color (5.13:1).
About this color
#4957FF is a medium-dark, vivid blue. In OKLCH its lightness is 56%, its chroma 0.245 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Neon Blue (#4361EE), ΔE 0.033 away. White text reads best on it, at 5.13:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | vivid (0.245) |
| Temperature | cool |
| Nearest name | Neon Blue (#4361EE) |
| Black text | 4.09:1 |
| White text | 5.13:1 |
Values
| HEX | #4957FF |
| RGB | rgb(73, 87, 255) |
| HSL | hsl(235, 100%, 64%) |
| OKLCH | oklch(55.6% 0.245 271.8) |
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 #4957FF | 5.13:1 | AA | Lc -80.0 | Fine for body text |
| Black text on #4957FF | 4.09:1 | AA large text | Lc 29.5 | Dividers and decoration only |
| #4957FF text on white | 5.13:1 | AA | Lc 74.6 | Content text, not long reading |
| #4957FF text on black | 4.09:1 | AA large text | Lc -27.1 | 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 600.
-
Step 50
50
#F2F5FF
oklch(97.1% 0.014 272.7)
-
Step 100
100
#E2E9FF
oklch(93.5% 0.031 271.7)
-
Step 200
200
#CCD8FF
oklch(88.6% 0.055 271.8)
-
Step 300
300
#ABBDFF
oklch(80.9% 0.096 272.3)
-
Step 400
400
#8098FF
oklch(70.7% 0.153 272.1)
-
Step 500
500
#627AFF
oklch(63.1% 0.198 271.8)
-
Step 600
600 (this color)
#4957FF
oklch(55.6% 0.245 271.8)
-
Step 700
700
#3C45DE
oklch(49.1% 0.227 271.9)
-
Step 800
800
#303AB4
oklch(42.7% 0.19 271.7)
-
Step 900
900
#29348E
oklch(37.6% 0.148 271.8)
-
Step 950
950
#182053
oklch(27.1% 0.093 272)
#4957FF 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) | #0076FF | 0.071 |
| Deuteranopia (no green cones) | #0065FC | 0.047 |
| Tritanopia (no blue cones) | #0084A4 | 0.193 |
| Achromatopsia (no color) | #6E6E6E | 0.246 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4957FF
#4957FF
oklch(55.6% 0.245 271.8)
- #8C7000
#8C7000
oklch(55.6% 0.114 91.4)
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 #4957FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Neon Blue #4361EE ΔE 0.033
- Bright Blue #0165FC ΔE 0.047
- Azul #1D5DEC ΔE 0.047
- Electric Blue #0652FF ΔE 0.050
- Warm Blue #4B57DB ΔE 0.055
- Royal Blue #4169E1 ΔE 0.060
- Cerulean Blue #056EEE ΔE 0.064
- Light Royal Blue #3A2EFE ΔE 0.073
Use #4957FF 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.