#5197FF
Closest named color: Chefchaouen Blue (#4895EF). oklch(68.1% 0.17 258.2), rgb(81, 151, 255).
Aa
Black text reads best on this color (7.22:1).
About this color
#5197FF is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.170 and its hue 258°. Its hue sits on the cool side of the wheel. The nearest named color is Chefchaouen Blue (#4895EF), ΔE 0.026 away. Black text reads best on it, at 7.22:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.170) |
| Temperature | cool |
| Nearest name | Chefchaouen Blue (#4895EF) |
| Black text | 7.22:1 |
| White text | 2.90:1 |
Values
| HEX | #5197FF |
| RGB | rgb(81, 151, 255) |
| HSL | hsl(216, 100%, 66%) |
| OKLCH | oklch(68.1% 0.17 258.2) |
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 #5197FF | 2.90:1 | Fails | Lc -60.4 | Content text, not long reading |
| Black text on #5197FF | 7.22:1 | AAA | Lc 48.9 | Large or bold text, headings |
| #5197FF text on white | 2.90:1 | Fails | Lc 55.1 | Large or bold text, headings |
| #5197FF text on black | 7.22:1 | AAA | Lc -46.7 | Large or bold text, headings |
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
#F0F6FF
oklch(97.1% 0.014 258.3)
-
Step 100
100
#DEEBFF
oklch(93.6% 0.031 258.9)
-
Step 200
200
#C3DBFF
oklch(88.5% 0.056 258.4)
-
Step 300
300
#9AC3FF
oklch(81% 0.096 257.8)
-
Step 400
400 (this color)
#5197FF
oklch(68.1% 0.17 258.2)
-
Step 500
500
#2F85FF
oklch(63.2% 0.199 258.2)
-
Step 600
600
#006BE9
oklch(55.5% 0.208 258.3)
-
Step 700
700
#005AC6
oklch(49.1% 0.184 258.2)
-
Step 800
800
#0049A4
oklch(42.7% 0.16 258.3)
-
Step 900
900
#003D8A
oklch(37.8% 0.14 258.1)
-
Step 950
950
#052451
oklch(26.9% 0.09 258.4)
#5197FF 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) | #66A0FF | 0.033 |
| Deuteranopia (no green cones) | #4A90FD | 0.020 |
| Tritanopia (no blue cones) | #00AFBF | 0.134 |
| Achromatopsia (no color) | #979797 | 0.170 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5197FF
#5197FF
oklch(68.1% 0.17 258.2)
- #C78C00
#C78C00
oklch(68.1% 0.142 78.7)
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 #5197FF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Chefchaouen Blue #4895EF ΔE 0.026
- Cornflower Blue #6495ED ΔE 0.030
- Dodger Blue #1E90FF ΔE 0.039
- Soft Blue #6488EA ΔE 0.046
- Dark Sky Blue #448EE4 ΔE 0.047
- Periwinkle Blue #8F99FB ΔE 0.069
- Lavender Blue #8B88F8 ΔE 0.070
- Cornflower #6A79F7 ΔE 0.075
Use #5197FF 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.