#529FD3
Closest named color: Cornflower Blue (#6495ED). oklch(67.5% 0.109 240.5), rgb(82, 159, 211).
Aa
Black text reads best on this color (7.25:1).
About this color
#529FD3 is a medium-light, moderately saturated blue. In OKLCH its lightness is 68%, its chroma 0.109 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.056 away. Black text reads best on it, at 7.25:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.25:1 |
| White text | 2.89:1 |
Values
| HEX | #529FD3 |
| RGB | rgb(82, 159, 211) |
| HSL | hsl(204, 59%, 57%) |
| OKLCH | oklch(67.5% 0.109 240.5) |
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 #529FD3 | 2.89:1 | Fails | Lc -60.3 | Content text, not long reading |
| Black text on #529FD3 | 7.25:1 | AAA | Lc 49.0 | Large or bold text, headings |
| #529FD3 text on white | 2.89:1 | Fails | Lc 55.0 | Large or bold text, headings |
| #529FD3 text on black | 7.25:1 | AAA | Lc -46.8 | 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
#F0F6FB
oklch(97% 0.009 242.8)
-
Step 100
100
#DFECF6
oklch(93.6% 0.019 240.7)
-
Step 200
200
#C4DDF0
oklch(88.5% 0.037 240.7)
-
Step 300
300
#99C7E9
oklch(80.9% 0.068 240.7)
-
Step 400
400 (this color)
#529FD3
oklch(67.5% 0.109 240.5)
-
Step 500
500
#1B92D4
oklch(63% 0.138 240.5)
-
Step 600
600
#007BB6
oklch(55.6% 0.128 240.2)
-
Step 700
700
#00679A
oklch(49.1% 0.113 240.5)
-
Step 800
800
#00547F
oklch(42.6% 0.099 240.7)
-
Step 900
900
#00466B
oklch(37.7% 0.087 240.8)
-
Step 950
950
#05293F
oklch(26.9% 0.057 240.8)
#529FD3 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) | #889FD5 | 0.058 |
| Deuteranopia (no green cones) | #7692D2 | 0.047 |
| Tritanopia (no blue cones) | #00ACB1 | 0.080 |
| Achromatopsia (no color) | #989898 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #529FD3
#529FD3
oklch(67.5% 0.109 240.5)
- #C7864D
#C7864D
oklch(67.5% 0.108 60.6)
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 #529FD3, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.056
- Faded Blue #658CBB ΔE 0.056
- Chefchaouen Blue #4895EF ΔE 0.056
- Greyblue #77A1B5 ΔE 0.057
- Dark Sky Blue #448EE4 ΔE 0.061
- Turquoise Blue #06B1C4 ΔE 0.067
- Silver Lake Blue #778DA9 ΔE 0.073
- Bluegrey #85A3B2 ΔE 0.073
Use #529FD3 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.