#5799DD
Closest named color: Cornflower Blue (#6495ED). oklch(66.9% 0.122 250.8), rgb(87, 153, 221).
Aa
Black text reads best on this color (7.00:1).
About this color
#5799DD is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.122 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.032 away. Black text reads best on it, at 7.00:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.122) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.00:1 |
| White text | 2.99:1 |
Values
| HEX | #5799DD |
| RGB | rgb(87, 153, 221) |
| HSL | hsl(210, 66%, 60%) |
| OKLCH | oklch(66.9% 0.122 250.8) |
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 #5799DD | 2.99:1 | Fails | Lc -61.8 | Content text, not long reading |
| Black text on #5799DD | 7.00:1 | AAA | Lc 47.6 | Large or bold text, headings |
| #5799DD text on white | 2.99:1 | Fails | Lc 56.4 | Large or bold text, headings |
| #5799DD text on black | 7.00:1 | AAA | Lc -45.3 | 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 500.
-
Step 50
50
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF5
oklch(93.6% 0.017 250.8)
-
Step 200
200
#C9DBEF
oklch(88.4% 0.034 251)
-
Step 300
300
#A4C4E7
oklch(80.9% 0.061 250.9)
-
Step 400
400
#72A5DA
oklch(70.7% 0.095 250.2)
-
Step 500
500 (this color)
#5799DD
oklch(66.9% 0.122 250.8)
-
Step 600
600
#2B76BE
oklch(55.6% 0.134 250.9)
-
Step 700
700
#1D63A4
oklch(49.1% 0.124 250.8)
-
Step 800
800
#1B5184
oklch(42.7% 0.102 250.5)
-
Step 900
900
#1D436A
oklch(37.6% 0.08 251.3)
-
Step 950
950
#12283E
oklch(27.1% 0.05 250.2)
#5799DD 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) | #7C9CE0 | 0.042 |
| Deuteranopia (no green cones) | #6A8FDC | 0.031 |
| Tritanopia (no blue cones) | #00A9B1 | 0.100 |
| Achromatopsia (no color) | #959595 | 0.122 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5799DD
#5799DD
oklch(66.9% 0.122 250.8)
- #C48633
#C48633
oklch(66.8% 0.123 70.3)
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 #5799DD, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.032
- Chefchaouen Blue #4895EF ΔE 0.034
- Dark Sky Blue #448EE4 ΔE 0.040
- Soft Blue #6488EA ΔE 0.054
- Faded Blue #658CBB ΔE 0.055
- Dodger Blue #1E90FF ΔE 0.070
- Perrywinkle #8F8CE7 ΔE 0.074
- Water Blue #0E87CC ΔE 0.075
Use #5799DD 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.