#5D99FD
Closest named color: Cornflower Blue (#6495ED). oklch(68.9% 0.161 260.1), rgb(93, 153, 253).
Aa
Black text reads best on this color (7.44:1).
About this color
#5D99FD is a medium-light, vivid blue. In OKLCH its lightness is 69%, its chroma 0.161 and its hue 260°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.024 away. Black text reads best on it, at 7.44:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | vivid (0.161) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.44:1 |
| White text | 2.82:1 |
Values
| HEX | #5D99FD |
| RGB | rgb(93, 153, 253) |
| HSL | hsl(218, 98%, 68%) |
| OKLCH | oklch(68.9% 0.161 260.1) |
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 #5D99FD | 2.82:1 | Fails | Lc -59.2 | Large or bold text, headings |
| Black text on #5D99FD | 7.44:1 | AAA | Lc 50.1 | Large or bold text, headings |
| #5D99FD text on white | 2.82:1 | Fails | Lc 54.0 | Large or bold text, headings |
| #5D99FD text on black | 7.44:1 | AAA | Lc -47.9 | 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
#C4DAFF
oklch(88.4% 0.057 260.8)
-
Step 300
300
#9CC2FF
oklch(80.9% 0.096 259.7)
-
Step 400
400 (this color)
#5D99FD
oklch(68.9% 0.161 260.1)
-
Step 500
500
#3983FF
oklch(63.1% 0.199 260.2)
-
Step 600
600
#0767F2
oklch(55.5% 0.223 260.1)
-
Step 700
700
#0056CF
oklch(49.1% 0.2 260)
-
Step 800
800
#0346AA
oklch(42.6% 0.172 260.1)
-
Step 900
900
#0F3D87
oklch(37.8% 0.133 260)
-
Step 950
950
#0B244F
oklch(27% 0.085 260.5)
#5D99FD 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) | #6CA2FF | 0.030 |
| Deuteranopia (no green cones) | #5593FB | 0.018 |
| Tritanopia (no blue cones) | #00B0BF | 0.133 |
| Achromatopsia (no color) | #9A9A9A | 0.161 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D99FD
#5D99FD
oklch(68.9% 0.161 260.1)
- #C88F00
#C88F00
oklch(68.8% 0.142 80.2)
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 #5D99FD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.024
- Chefchaouen Blue #4895EF ΔE 0.031
- Soft Blue #6488EA ΔE 0.047
- Dodger Blue #1E90FF ΔE 0.051
- Dark Sky Blue #448EE4 ΔE 0.052
- Periwinkle Blue #8F99FB ΔE 0.057
- Lavender Blue #8B88F8 ΔE 0.063
- Perrywinkle #8F8CE7 ΔE 0.067
Use #5D99FD 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.