#5F78E7
Closest named color: Cornflower (#6A79F7). oklch(60.9% 0.169 271.1), rgb(95, 120, 231).
Aa
Black text reads best on this color (5.32:1).
About this color
#5F78E7 is a medium-dark, vivid blue. In OKLCH its lightness is 61%, its chroma 0.169 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower (#6A79F7), ΔE 0.028 away. Black text reads best on it, at 5.32:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | vivid (0.169) |
| Temperature | cool |
| Nearest name | Cornflower (#6A79F7) |
| Black text | 5.32:1 |
| White text | 3.94:1 |
Values
| HEX | #5F78E7 |
| RGB | rgb(95, 120, 231) |
| HSL | hsl(229, 74%, 64%) |
| OKLCH | oklch(60.9% 0.169 271.1) |
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 #5F78E7 | 3.94:1 | AA large text | Lc -72.0 | Content text, not long reading |
| Black text on #5F78E7 | 5.32:1 | AA | Lc 37.5 | Non-text elements, placeholder text |
| #5F78E7 text on white | 3.94:1 | AA large text | Lc 66.5 | Content text, not long reading |
| #5F78E7 text on black | 5.32:1 | AA | Lc -35.1 | 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
#F2F5FD
oklch(97% 0.011 269.6)
-
Step 100
100
#E4E9FB
oklch(93.6% 0.025 273.5)
-
Step 200
200
#CED8F8
oklch(88.5% 0.045 271.7)
-
Step 300
300
#ADBEF7
oklch(80.9% 0.083 271.6)
-
Step 400
400
#829BF3
oklch(70.7% 0.132 270.7)
-
Step 500
500 (this color)
#5F78E7
oklch(60.9% 0.169 271.1)
-
Step 600
600
#4E65DD
oklch(55.6% 0.184 271)
-
Step 700
700
#4053C0
oklch(49.1% 0.171 271.2)
-
Step 800
800
#34459B
oklch(42.7% 0.141 270.8)
-
Step 900
900
#2D3B7B
oklch(37.7% 0.11 271)
-
Step 950
950
#1A2348
oklch(27% 0.07 270.8)
#5F78E7 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) | #4086EB | 0.042 |
| Deuteranopia (no green cones) | #287AE5 | 0.048 |
| Tritanopia (no blue cones) | #0091A4 | 0.148 |
| Achromatopsia (no color) | #808080 | 0.169 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5F78E7
#5F78E7
oklch(60.9% 0.169 271.1)
- #9F7F00
#9F7F00
oklch(61% 0.125 91)
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 #5F78E7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower #6A79F7 ΔE 0.028
- Soft Blue #6488EA ΔE 0.042
- Medium Slate Blue #7B68EE ΔE 0.052
- Royal Blue #4169E1 ΔE 0.055
- Clear Blue #247AFD ΔE 0.057
- Dark Sky Blue #448EE4 ΔE 0.060
- Dark Periwinkle #665FD1 ΔE 0.066
- Neon Blue #4361EE ΔE 0.070
Use #5F78E7 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.