#4F7FFB
Closest named color: Cornflower (#6A79F7). oklch(62.8% 0.192 265.3), rgb(79, 127, 251).
Aa
Black text reads best on this color (5.76:1).
About this color
#4F7FFB is a medium-light, vivid blue. In OKLCH its lightness is 63%, its chroma 0.192 and its hue 265°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.031 away. Black text reads best on it, at 5.76:1.
| Hue family | Blues |
| Lightness | medium-light (63%) |
| Chroma | vivid (0.192) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.76:1 |
| White text | 3.64:1 |
Values
| HEX | #4F7FFB |
| RGB | rgb(79, 127, 251) |
| HSL | hsl(223, 96%, 65%) |
| OKLCH | oklch(62.8% 0.192 265.3) |
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 #4F7FFB | 3.64:1 | AA large text | Lc -69.1 | Content text, not long reading |
| Black text on #4F7FFB | 5.76:1 | AA | Lc 40.4 | Non-text elements, placeholder text |
| #4F7FFB text on white | 3.64:1 | AA large text | Lc 63.6 | Content text, not long reading |
| #4F7FFB text on black | 5.76:1 | AA | Lc -38.0 | 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
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFD
oklch(93.6% 0.028 265.4)
-
Step 200
200
#C9D9FD
oklch(88.5% 0.053 266.4)
-
Step 300
300
#A3C0FE
oklch(80.9% 0.094 265)
-
Step 400
400
#739CFE
oklch(70.6% 0.151 265.6)
-
Step 500
500 (this color)
#4F7FFB
oklch(62.8% 0.192 265.3)
-
Step 600
600
#3665EB
oklch(55.5% 0.209 265.3)
-
Step 700
700
#2A53CD
oklch(49.2% 0.195 265.4)
-
Step 800
800
#2345A5
oklch(42.7% 0.16 265.3)
-
Step 900
900
#203B83
oklch(37.6% 0.126 265.3)
-
Step 950
950
#13234D
oklch(26.9% 0.08 265.6)
#4F7FFB 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) | #378EFF | 0.038 |
| Deuteranopia (no green cones) | #007EF8 | 0.042 |
| Tritanopia (no blue cones) | #009CB1 | 0.155 |
| Achromatopsia (no color) | #868686 | 0.192 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F7FFB
#4F7FFB
oklch(62.8% 0.192 265.3)
- #AC8100
#AC8100
oklch(62.8% 0.129 85)
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 #4F7FFB, closest first.
No curated palette has a color within ΔE 0.04 of #4F7FFB.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.031
- Clear Blue #247AFD ΔE 0.036
- Soft Blue #6488EA ΔE 0.044
- Dodger Blue #1E90FF ΔE 0.047
- Dark Sky Blue #448EE4 ΔE 0.056
- Chefchaouen Blue #4895EF ΔE 0.062
- Royal Blue #4169E1 ΔE 0.068
- Cerulean Blue #056EEE ΔE 0.070
Use #4F7FFB 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.