#5993EB
Closest named color: Cornflower Blue (#6495ED). oklch(66.4% 0.145 258.5), rgb(89, 147, 235).
Aa
Black text reads best on this color (6.79:1).
About this color
#5993EB is a medium-light, vivid blue. In OKLCH its lightness is 66%, its chroma 0.145 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.013 away. Black text reads best on it, at 6.79:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | vivid (0.145) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 6.79:1 |
| White text | 3.08:1 |
Values
| HEX | #5993EB |
| RGB | rgb(89, 147, 235) |
| HSL | hsl(216, 78%, 64%) |
| OKLCH | oklch(66.4% 0.145 258.5) |
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 #5993EB | 3.08:1 | AA large text | Lc -63.0 | Content text, not long reading |
| Black text on #5993EB | 6.79:1 | AA | Lc 46.5 | Large or bold text, headings |
| #5993EB text on white | 3.08:1 | AA large text | Lc 57.6 | Large or bold text, headings |
| #5993EB text on black | 6.79:1 | AA | Lc -44.2 | 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
#E2EBF8
oklch(93.7% 0.02 257.5)
-
Step 200
200
#CADAF4
oklch(88.4% 0.04 260.1)
-
Step 300
300
#A5C2EF
oklch(80.8% 0.071 259.1)
-
Step 400
400
#74A2E7
oklch(70.8% 0.113 258.3)
-
Step 500
500 (this color)
#5993EB
oklch(66.4% 0.145 258.5)
-
Step 600
600
#3271CE
oklch(55.7% 0.158 258.4)
-
Step 700
700
#255EB2
oklch(49.2% 0.146 258.5)
-
Step 800
800
#204D90
oklch(42.7% 0.121 258.5)
-
Step 900
900
#1F4173
oklch(37.8% 0.095 258.1)
-
Step 950
950
#132643
oklch(26.9% 0.06 258.6)
#5993EB 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) | #6D9AEF | 0.030 |
| Deuteranopia (no green cones) | #588CE9 | 0.019 |
| Tritanopia (no blue cones) | #00A7B4 | 0.120 |
| Achromatopsia (no color) | #939393 | 0.145 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5993EB
#5993EB
oklch(66.4% 0.145 258.5)
- #C18700
#C18700
oklch(66.4% 0.138 78.3)
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 #5993EB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.013
- Chefchaouen Blue #4895EF ΔE 0.015
- Dark Sky Blue #448EE4 ΔE 0.026
- Soft Blue #6488EA ΔE 0.029
- Dodger Blue #1E90FF ΔE 0.049
- Perrywinkle #8F8CE7 ΔE 0.064
- Lavender Blue #8B88F8 ΔE 0.068
- Faded Blue #658CBB ΔE 0.071
Use #5993EB 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.