#4F77EB
Closest named color: Cornflower (#6A79F7). oklch(60.1% 0.181 266.6), rgb(79, 119, 235).
Aa
Black text reads best on this color (5.17:1).
About this color
#4F77EB is a medium-dark, vivid blue. In OKLCH its lightness is 60%, its chroma 0.181 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.038 away. Black text reads best on it, at 5.17:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | vivid (0.181) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.17:1 |
| White text | 4.06:1 |
Values
| HEX | #4F77EB |
| RGB | rgb(79, 119, 235) |
| HSL | hsl(225, 80%, 62%) |
| OKLCH | oklch(60.1% 0.181 266.6) |
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 #4F77EB | 4.06:1 | AA large text | Lc -73.0 | Content text, not long reading |
| Black text on #4F77EB | 5.17:1 | AA | Lc 36.6 | Non-text elements, placeholder text |
| #4F77EB text on white | 4.06:1 | AA large text | Lc 67.5 | Content text, not long reading |
| #4F77EB text on black | 5.17:1 | AA | Lc -34.2 | 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
#F2F5FE
oklch(97% 0.012 271.3)
-
Step 100
100
#E2EAFC
oklch(93.6% 0.026 266.6)
-
Step 200
200
#CAD9FB
oklch(88.5% 0.05 266.5)
-
Step 300
300
#A7C0FB
oklch(81% 0.088 266.6)
-
Step 400
400
#789CF9
oklch(70.7% 0.142 266.8)
-
Step 500
500 (this color)
#4F77EB
oklch(60.1% 0.181 266.6)
-
Step 600
600
#3F66E4
oklch(55.5% 0.196 266.8)
-
Step 700
700
#3154C6
oklch(49.1% 0.182 266.5)
-
Step 800
800
#2946A0
oklch(42.8% 0.15 266.5)
-
Step 900
900
#253C7F
oklch(37.8% 0.117 266.5)
-
Step 950
950
#16244A
oklch(27.1% 0.073 266.4)
#4F77EB 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) | #3585EF | 0.038 |
| Deuteranopia (no green cones) | #0077E9 | 0.044 |
| Tritanopia (no blue cones) | #0092A6 | 0.148 |
| Achromatopsia (no color) | #7E7E7E | 0.181 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F77EB
#4F77EB
oklch(60.1% 0.181 266.6)
- #A07A00
#A07A00
oklch(60% 0.123 86.7)
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 #4F77EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.038
- Clear Blue #247AFD ΔE 0.040
- Royal Blue #4169E1 ΔE 0.042
- Soft Blue #6488EA ΔE 0.053
- Cerulean Blue #056EEE ΔE 0.054
- Neon Blue #4361EE ΔE 0.057
- Dark Sky Blue #448EE4 ΔE 0.062
- Medium Slate Blue #7B68EE ΔE 0.063
Use #4F77EB 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.