#5D9FFB
Closest named color: Cornflower Blue (#6495ED). oklch(70% 0.152 257), rgb(93, 159, 251).
Aa
Black text reads best on this color (7.81:1).
About this color
#5D9FFB is a medium-light, vivid blue. In OKLCH its lightness is 70%, its chroma 0.152 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.030 away. Black text reads best on it, at 7.81:1.
| Hue family | Blues |
| Lightness | medium-light (70%) |
| Chroma | vivid (0.152) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.81:1 |
| White text | 2.68:1 |
Values
| HEX | #5D9FFB |
| RGB | rgb(93, 159, 251) |
| HSL | hsl(215, 95%, 67%) |
| OKLCH | oklch(70% 0.152 257) |
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 #5D9FFB | 2.68:1 | Fails | Lc -57.1 | Large or bold text, headings |
| Black text on #5D9FFB | 7.81:1 | AAA | Lc 52.1 | Large or bold text, headings |
| #5D9FFB text on white | 2.68:1 | Fails | Lc 51.9 | Large or bold text, headings |
| #5D9FFB text on black | 7.81:1 | AAA | Lc -50.0 | 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
#F0F6FE
oklch(97.1% 0.012 255.5)
-
Step 100
100
#DFEBFD
oklch(93.6% 0.028 258.4)
-
Step 200
200
#C3DBFC
oklch(88.4% 0.052 256.4)
-
Step 300
300
#99C3FE
oklch(80.9% 0.095 256.9)
-
Step 400
400 (this color)
#5D9FFB
oklch(70% 0.152 257)
-
Step 500
500
#2C86FB
oklch(63.1% 0.194 257)
-
Step 600
600
#006EE3
oklch(55.7% 0.197 256.9)
-
Step 700
700
#005CC1
oklch(49.2% 0.175 257.1)
-
Step 800
800
#004B9F
oklch(42.7% 0.151 256.9)
-
Step 900
900
#073F83
oklch(37.8% 0.127 257)
-
Step 950
950
#08254C
oklch(26.8% 0.08 257.2)
#5D9FFB 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) | #77A6FF | 0.035 |
| Deuteranopia (no green cones) | #6197F9 | 0.020 |
| Tritanopia (no blue cones) | #00B4C1 | 0.125 |
| Achromatopsia (no color) | #9E9E9E | 0.152 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D9FFB
#5D9FFB
oklch(70% 0.152 257)
- #D19000
#D19000
oklch(70% 0.147 76.7)
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 #5D9FFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.030
- Chefchaouen Blue #4895EF ΔE 0.038
- Periwinkle Blue #8F99FB ΔE 0.056
- Soft Blue #6488EA ΔE 0.060
- Dark Sky Blue #448EE4 ΔE 0.060
- Dodger Blue #1E90FF ΔE 0.063
- Perrywinkle #8F8CE7 ΔE 0.071
- Lavender Blue #8B88F8 ΔE 0.073
Use #5D9FFB 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.