#678EFB
Closest named color: Soft Blue (#6488EA). oklch(67% 0.167 267), rgb(103, 142, 251).
Aa
Black text reads best on this color (6.83:1).
About this color
#678EFB is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.167 and its hue 267°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.028 away. Black text reads best on it, at 6.83:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.167) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 6.83:1 |
| White text | 3.07:1 |
Values
| HEX | #678EFB |
| RGB | rgb(103, 142, 251) |
| HSL | hsl(224, 95%, 69%) |
| OKLCH | oklch(67% 0.167 267) |
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 #678EFB | 3.07:1 | AA large text | Lc -62.7 | Content text, not long reading |
| Black text on #678EFB | 6.83:1 | AA | Lc 46.7 | Large or bold text, headings |
| #678EFB text on white | 3.07:1 | AA large text | Lc 57.4 | Large or bold text, headings |
| #678EFB text on black | 6.83:1 | AA | Lc -44.4 | 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 400.
-
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 (this color)
#678EFB
oklch(67% 0.167 267)
-
Step 500
500
#547EFF
oklch(63.1% 0.197 267)
-
Step 600
600
#385FF8
oklch(55.6% 0.232 267.1)
-
Step 700
700
#2C4DD8
oklch(49.1% 0.215 267.1)
-
Step 800
800
#2440AF
oklch(42.7% 0.179 267.1)
-
Step 900
900
#21388A
oklch(37.6% 0.139 267.3)
-
Step 950
950
#132251
oklch(27% 0.088 267)
#678EFB 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) | #5C9AFF | 0.031 |
| Deuteranopia (no green cones) | #478DF9 | 0.031 |
| Tritanopia (no blue cones) | #00A6B8 | 0.145 |
| Achromatopsia (no color) | #939393 | 0.167 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #678EFB
#678EFB
oklch(67% 0.167 267)
- #B98E00
#B98E00
oklch(66.9% 0.137 87)
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 #678EFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.028
- Cornflower Blue #6495ED ΔE 0.030
- Chefchaouen Blue #4895EF ΔE 0.039
- Lavender Blue #8B88F8 ΔE 0.045
- Dark Sky Blue #448EE4 ΔE 0.050
- Cornflower #6A79F7 ΔE 0.051
- Dodger Blue #1E90FF ΔE 0.052
- Periwinkle #8E82FE ΔE 0.055
Use #678EFB 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.