#5B98FB
Closest named color: Cornflower Blue (#6495ED). oklch(68.5% 0.16 259.6), rgb(91, 152, 251).
Aa
Black text reads best on this color (7.32:1).
About this color
#5B98FB is a medium-light, vivid blue. In OKLCH its lightness is 68%, its chroma 0.160 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.021 away. Black text reads best on it, at 7.32:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | vivid (0.160) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.32:1 |
| White text | 2.86:1 |
Values
| HEX | #5B98FB |
| RGB | rgb(91, 152, 251) |
| HSL | hsl(217, 95%, 67%) |
| OKLCH | oklch(68.5% 0.16 259.6) |
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 #5B98FB | 2.86:1 | Fails | Lc -59.9 | Large or bold text, headings |
| Black text on #5B98FB | 7.32:1 | AAA | Lc 49.5 | Large or bold text, headings |
| #5B98FB text on white | 2.86:1 | Fails | Lc 54.6 | Large or bold text, headings |
| #5B98FB text on black | 7.32:1 | AAA | Lc -47.3 | 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
#DFEBFE
oklch(93.7% 0.029 259.6)
-
Step 200
200
#C4DBFF
oklch(88.6% 0.056 259.3)
-
Step 300
300
#9CC2FF
oklch(80.9% 0.096 259.7)
-
Step 400
400 (this color)
#5B98FB
oklch(68.5% 0.16 259.6)
-
Step 500
500
#3684FF
oklch(63.2% 0.199 259.4)
-
Step 600
600
#0168F2
oklch(55.6% 0.223 259.7)
-
Step 700
700
#0057CD
oklch(49.1% 0.196 259.6)
-
Step 800
800
#0047AA
oklch(42.8% 0.171 259.6)
-
Step 900
900
#0D3D87
oklch(37.8% 0.134 259.6)
-
Step 950
950
#0A244F
oklch(26.9% 0.085 260)
#5B98FB 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) | #6CA1FF | 0.031 |
| Deuteranopia (no green cones) | #5492F9 | 0.018 |
| Tritanopia (no blue cones) | #00AFBD | 0.133 |
| Achromatopsia (no color) | #999999 | 0.160 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5B98FB
#5B98FB
oklch(68.5% 0.16 259.6)
- #C78E00
#C78E00
oklch(68.5% 0.142 80)
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 #5B98FB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.021
- Chefchaouen Blue #4895EF ΔE 0.026
- Soft Blue #6488EA ΔE 0.044
- Dark Sky Blue #448EE4 ΔE 0.048
- Dodger Blue #1E90FF ΔE 0.049
- Periwinkle Blue #8F99FB ΔE 0.060
- Lavender Blue #8B88F8 ΔE 0.064
- Perrywinkle #8F8CE7 ΔE 0.067
Use #5B98FB 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.