#5D99DC
Closest named color: Cornflower Blue (#6495ED). oklch(67.1% 0.118 252.4), rgb(93, 153, 220).
Aa
Black text reads best on this color (7.05:1).
About this color
#5D99DC is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.118 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.031 away. Black text reads best on it, at 7.05:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.118) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.05:1 |
| White text | 2.97:1 |
Values
| HEX | #5D99DC |
| RGB | rgb(93, 153, 220) |
| HSL | hsl(212, 64%, 61%) |
| OKLCH | oklch(67.1% 0.118 252.4) |
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 #5D99DC | 2.97:1 | Fails | Lc -61.5 | Content text, not long reading |
| Black text on #5D99DC | 7.05:1 | AAA | Lc 47.9 | Large or bold text, headings |
| #5D99DC text on white | 2.97:1 | Fails | Lc 56.2 | Large or bold text, headings |
| #5D99DC text on black | 7.05:1 | AAA | Lc -45.6 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C6DBF4
oklch(88.4% 0.041 252.8)
-
Step 300
300
#9FC4F0
oklch(80.9% 0.074 253.1)
-
Step 400
400 (this color)
#5D99DC
oklch(67.1% 0.118 252.4)
-
Step 500
500
#3A8CE1
oklch(63.1% 0.151 252.1)
-
Step 600
600
#0A74CF
oklch(55.6% 0.164 252.2)
-
Step 700
700
#0061B1
oklch(49.1% 0.148 252.3)
-
Step 800
800
#044F91
oklch(42.6% 0.127 252.5)
-
Step 900
900
#124374
oklch(37.8% 0.098 252.2)
-
Step 950
950
#0C2744
oklch(26.9% 0.063 252.6)
#5D99DC 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) | #7D9CDF | 0.038 |
| Deuteranopia (no green cones) | #6C90DB | 0.027 |
| Tritanopia (no blue cones) | #00A8B1 | 0.099 |
| Achromatopsia (no color) | #969696 | 0.118 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D99DC
#5D99DC
oklch(67.1% 0.118 252.4)
- #C28938
#C28938
oklch(67.2% 0.118 72.5)
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 #5D99DC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.031
- Chefchaouen Blue #4895EF ΔE 0.037
- Dark Sky Blue #448EE4 ΔE 0.043
- Faded Blue #658CBB ΔE 0.053
- Soft Blue #6488EA ΔE 0.054
- Perrywinkle #8F8CE7 ΔE 0.070
- Greyblue #77A1B5 ΔE 0.073
- Dodger Blue #1E90FF ΔE 0.074
Use #5D99DC 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.