#4971FB
Closest named color: Clear Blue (#247AFD). oklch(59.8% 0.21 267.4), rgb(73, 113, 251).
Aa
Black text reads best on this color (5.03:1).
About this color
#4971FB is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.210 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Clear Blue (#247AFD), ΔE 0.030 away. Black text reads best on it, at 5.03:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.210) |
| Temperature | cool |
| Nearest name | Clear Blue (#247AFD) |
| Black text | 5.03:1 |
| White text | 4.16:1 |
Values
| HEX | #4971FB |
| RGB | rgb(73, 113, 251) |
| HSL | hsl(227, 96%, 64%) |
| OKLCH | oklch(59.8% 0.21 267.4) |
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 #4971FB | 4.16:1 | AA large text | Lc -73.7 | Content text, not long reading |
| Black text on #4971FB | 5.03:1 | AA | Lc 35.9 | Non-text elements, placeholder text |
| #4971FB text on white | 4.16:1 | AA large text | Lc 68.2 | Content text, not long reading |
| #4971FB text on black | 5.03:1 | AA | Lc -33.5 | Non-text elements, placeholder text |
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 500.
-
Step 50
50
#F1F5FF
oklch(97% 0.014 268.5)
-
Step 100
100
#E1EAFF
oklch(93.7% 0.03 267.2)
-
Step 200
200
#C9D9FF
oklch(88.6% 0.055 267.2)
-
Step 300
300
#A5BFFF
oklch(80.9% 0.095 267.2)
-
Step 400
400
#779BFF
oklch(70.7% 0.152 267.5)
-
Step 500
500 (this color)
#4971FB
oklch(59.8% 0.21 267.4)
-
Step 600
600
#3A5FF6
oklch(55.5% 0.229 267.5)
-
Step 700
700
#2E4DD7
oklch(49.1% 0.213 267.5)
-
Step 800
800
#2641AD
oklch(42.8% 0.175 267.4)
-
Step 900
900
#223989
oklch(37.8% 0.136 267.3)
-
Step 950
950
#142250
oklch(27% 0.086 267.5)
#4971FB 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) | #0085FF | 0.053 |
| Deuteranopia (no green cones) | #0074F8 | 0.038 |
| Tritanopia (no blue cones) | #0093AB | 0.169 |
| Achromatopsia (no color) | #7C7C7C | 0.211 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4971FB
#4971FB
oklch(59.8% 0.21 267.4)
- #9F7A00
#9F7A00
oklch(59.9% 0.122 87.3)
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 #4971FB, closest first.
No curated palette has a color within ΔE 0.04 of #4971FB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Clear Blue #247AFD ΔE 0.030
- Neon Blue #4361EE ΔE 0.043
- Royal Blue #4169E1 ΔE 0.045
- Cornflower #6A79F7 ΔE 0.046
- Cerulean Blue #056EEE ΔE 0.047
- Bright Blue #0165FC ΔE 0.055
- Medium Slate Blue #7B68EE ΔE 0.066
- Azul #1D5DEC ΔE 0.068
Use #4971FB 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.