#529EC1
Closest named color: Greyblue (#77A1B5). oklch(66.5% 0.091 230.1), rgb(82, 158, 193).
Aa
Black text reads best on this color (7.01:1).
About this color
#529EC1 is a medium-light, moderately saturated blue. In OKLCH its lightness is 66%, its chroma 0.091 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.043 away. Black text reads best on it, at 7.01:1.
| Hue family | Blues |
| Lightness | medium-light (66%) |
| Chroma | moderately saturated (0.091) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.01:1 |
| White text | 2.99:1 |
Values
| HEX | #529EC1 |
| RGB | rgb(82, 158, 193) |
| HSL | hsl(199, 47%, 54%) |
| OKLCH | oklch(66.5% 0.091 230.1) |
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 #529EC1 | 2.99:1 | Fails | Lc -61.7 | Content text, not long reading |
| Black text on #529EC1 | 7.01:1 | AAA | Lc 47.7 | Large or bold text, headings |
| #529EC1 text on white | 2.99:1 | Fails | Lc 56.4 | Large or bold text, headings |
| #529EC1 text on black | 7.01:1 | AAA | Lc -45.4 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2ECF1
oklch(93.7% 0.013 228.9)
-
Step 200
200
#C9DDE7
oklch(88.6% 0.025 229.2)
-
Step 300
300
#A4C7D8
oklch(81% 0.044 228.9)
-
Step 400
400
#71A9C5
oklch(70.6% 0.071 230.8)
-
Step 500
500 (this color)
#529EC1
oklch(66.5% 0.091 230.1)
-
Step 600
600
#227DA2
oklch(55.5% 0.099 230.3)
-
Step 700
700
#126A8B
oklch(49.2% 0.092 229.8)
-
Step 800
800
#145671
oklch(42.6% 0.077 230.6)
-
Step 900
900
#1A475B
oklch(37.6% 0.059 230.5)
-
Step 950
950
#112A35
oklch(27.1% 0.037 229)
#529EC1 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) | #8C9CC3 | 0.064 |
| Deuteranopia (no green cones) | #7D90C1 | 0.057 |
| Tritanopia (no blue cones) | #00A8A9 | 0.064 |
| Achromatopsia (no color) | #959595 | 0.092 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #529EC1
#529EC1
oklch(66.5% 0.091 230.1)
- #C18360
#C18360
oklch(66.5% 0.091 50.1)
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 #529EC1, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.043
- Faded Blue #658CBB ΔE 0.050
- Cadet Blue #5F9EA0 ΔE 0.050
- Turquoise Blue #06B1C4 ΔE 0.057
- Silver Lake Blue #778DA9 ΔE 0.058
- Blue Grey #758DA3 ΔE 0.061
- Bluegrey #85A3B2 ΔE 0.061
- Bluey Grey #89A0B0 ΔE 0.064
Use #529EC1 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.