#5D9FDB
Closest named color: Cornflower Blue (#6495ED). oklch(68.4% 0.112 247.6), rgb(93, 159, 219).
Aa
Black text reads best on this color (7.44:1).
About this color
#5D9FDB is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.112 and its hue 248°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.043 away. Black text reads best on it, at 7.44:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.112) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.44:1 |
| White text | 2.81:1 |
Values
| HEX | #5D9FDB |
| RGB | rgb(93, 159, 219) |
| HSL | hsl(209, 64%, 61%) |
| OKLCH | oklch(68.4% 0.112 247.6) |
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 #5D9FDB | 2.81:1 | Fails | Lc -59.3 | Large or bold text, headings |
| Black text on #5D9FDB | 7.44:1 | AAA | Lc 50.0 | Large or bold text, headings |
| #5D9FDB text on white | 2.81:1 | Fails | Lc 54.0 | Large or bold text, headings |
| #5D9FDB text on black | 7.44:1 | AAA | Lc -47.8 | 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
#E0EBF7
oklch(93.5% 0.02 250.4)
-
Step 200
200
#C6DCF2
oklch(88.5% 0.038 248.3)
-
Step 300
300
#9DC5EC
oklch(80.8% 0.07 248.1)
-
Step 400
400 (this color)
#5D9FDB
oklch(68.4% 0.112 247.6)
-
Step 500
500
#328FDB
oklch(63.2% 0.143 247.5)
-
Step 600
600
#0077C5
oklch(55.6% 0.149 247.9)
-
Step 700
700
#0064A6
oklch(49.1% 0.131 247.6)
-
Step 800
800
#005289
oklch(42.7% 0.113 247.3)
-
Step 900
900
#0B4470
oklch(37.7% 0.093 247.8)
-
Step 950
950
#0A2842
oklch(27% 0.06 248.4)
#5D9FDB 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) | #86A1DE | 0.046 |
| Deuteranopia (no green cones) | #7594DA | 0.036 |
| Tritanopia (no blue cones) | #00ADB4 | 0.092 |
| Achromatopsia (no color) | #9A9A9A | 0.112 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5D9FDB
#5D9FDB
oklch(68.4% 0.112 247.6)
- #C78B47
#C78B47
oklch(68.3% 0.112 67.4)
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 #5D9FDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.043
- Chefchaouen Blue #4895EF ΔE 0.049
- Dark Sky Blue #448EE4 ΔE 0.059
- Faded Blue #658CBB ΔE 0.061
- Greyblue #77A1B5 ΔE 0.063
- Soft Blue #6488EA ΔE 0.070
- Bluegrey #85A3B2 ΔE 0.076
- Bluey Grey #89A0B0 ΔE 0.078
Use #5D9FDB 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.