#5C90EB
Closest named color: Cornflower Blue (#6495ED). oklch(65.9% 0.147 260.9), rgb(92, 144, 235).
Aa
Black text reads best on this color (6.64:1).
About this color
#5C90EB is a medium-light, vivid blue. In OKLCH its lightness is 66%, its chroma 0.147 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.017 away. Black text reads best on it, at 6.64:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.147) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.64:1 |
| White text | 3.16:1 |
Values
| HEX | #5C90EB |
| RGB | rgb(92, 144, 235) |
| HSL | hsl(218, 78%, 64%) |
| OKLCH | oklch(65.9% 0.147 260.9) |
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 #5C90EB | 3.16:1 | AA large text | Lc -63.9 | Content text, not long reading |
| Black text on #5C90EB | 6.64:1 | AA | Lc 45.6 | Large or bold text, headings |
| #5C90EB text on white | 3.16:1 | AA large text | Lc 58.5 | Large or bold text, headings |
| #5C90EB text on black | 6.64:1 | AA | Lc -43.2 | 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 500.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF8
oklch(93.5% 0.021 261.8)
-
Step 200
200
#CADAF4
oklch(88.4% 0.04 260.1)
-
Step 300
300
#A6C2F0
oklch(80.9% 0.072 260.3)
-
Step 400
400
#77A1E8
oklch(70.8% 0.114 260.5)
-
Step 500
500 (this color)
#5C90EB
oklch(65.9% 0.147 260.9)
-
Step 600
600
#396FCF
oklch(55.6% 0.159 260.9)
-
Step 700
700
#2B5CB4
oklch(49.1% 0.15 261)
-
Step 800
800
#254C91
oklch(42.7% 0.122 260.8)
-
Step 900
900
#224074
oklch(37.7% 0.096 260.6)
-
Step 950
950
#152644
oklch(27.1% 0.061 261)
#5C90EB 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) | #6898EF | 0.026 |
| Deuteranopia (no green cones) | #558BE9 | 0.016 |
| Tritanopia (no blue cones) | #00A5B2 | 0.126 |
| Achromatopsia (no color) | #919191 | 0.147 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5C90EB
#5C90EB
oklch(65.9% 0.147 260.9)
- #BC8700
#BC8700
oklch(65.8% 0.136 80.7)
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 #5C90EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.017
- Chefchaouen Blue #4895EF ΔE 0.020
- Soft Blue #6488EA ΔE 0.021
- Dark Sky Blue #448EE4 ΔE 0.026
- Dodger Blue #1E90FF ΔE 0.049
- Perrywinkle #8F8CE7 ΔE 0.061
- Lavender Blue #8B88F8 ΔE 0.063
- Cornflower #6A79F7 ΔE 0.064
Use #5C90EB 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.