#4971F0
Closest named color: Royal Blue (#4169E1). oklch(59% 0.196 267), rgb(73, 113, 240).
Aa
Black text reads best on this color (4.90:1).
About this color
#4971F0 is a medium-dark, vivid blue. In OKLCH its lightness is 59%, its chroma 0.196 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Royal Blue (#4169E1), ΔE 0.031 away. Black text reads best on it, at 4.90:1.
| Hue family | Blues |
| Lightness | medium-dark (59%) |
| Chroma | vivid (0.196) |
| Temperature | cool |
| Nearest name | Royal Blue (#4169E1) |
| Black text | 4.90:1 |
| White text | 4.28:1 |
Values
| HEX | #4971F0 |
| RGB | rgb(73, 113, 240) |
| HSL | hsl(226, 85%, 61%) |
| OKLCH | oklch(59% 0.196 267) |
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 #4971F0 | 4.28:1 | AA large text | Lc -74.7 | Content text, not long reading |
| Black text on #4971F0 | 4.90:1 | AA | Lc 34.9 | Non-text elements, placeholder text |
| #4971F0 text on white | 4.28:1 | AA large text | Lc 69.2 | Content text, not long reading |
| #4971F0 text on black | 4.90:1 | AA | Lc -32.5 | 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 600.
-
Step 50
50
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#CBD9FB
oklch(88.6% 0.049 267.7)
-
Step 300
300
#A7BFFB
oklch(80.8% 0.089 267.5)
-
Step 400
400
#799CF8
oklch(70.7% 0.141 267)
-
Step 500
500
#5880F5
oklch(63% 0.18 267)
-
Step 600
600 (this color)
#4971F0
oklch(59% 0.196 267)
-
Step 700
700
#3354C6
oklch(49.1% 0.182 267.1)
-
Step 800
800
#2A45A0
oklch(42.6% 0.151 267.1)
-
Step 900
900
#253C7F
oklch(37.8% 0.117 266.5)
-
Step 950
950
#16234A
oklch(26.9% 0.074 267.4)
#4971F0 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) | #1182F4 | 0.047 |
| Deuteranopia (no green cones) | #0073ED | 0.039 |
| Tritanopia (no blue cones) | #0090A6 | 0.159 |
| Achromatopsia (no color) | #7A7A7A | 0.196 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4971F0
#4971F0
oklch(59% 0.196 267)
- #9C7700
#9C7700
oklch(58.9% 0.121 86.8)
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 #4971F0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Royal Blue #4169E1 ΔE 0.031
- Clear Blue #247AFD ΔE 0.035
- Neon Blue #4361EE ΔE 0.039
- Cerulean Blue #056EEE ΔE 0.042
- Cornflower #6A79F7 ΔE 0.047
- Bright Blue #0165FC ΔE 0.057
- Medium Slate Blue #7B68EE ΔE 0.064
- Azul #1D5DEC ΔE 0.065
Use #4971F0 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.