#529FC4
Closest named color: Greyblue (#77A1B5). oklch(66.8% 0.094 231.3), rgb(82, 159, 196).
Aa
Black text reads best on this color (7.11:1).
About this color
#529FC4 is a medium-light, moderately saturated blue. In OKLCH its lightness is 67%, its chroma 0.094 and its hue 231°. 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 7.11:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.11:1 |
| White text | 2.95:1 |
Values
| HEX | #529FC4 |
| RGB | rgb(82, 159, 196) |
| HSL | hsl(199, 49%, 55%) |
| OKLCH | oklch(66.8% 0.094 231.3) |
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 #529FC4 | 2.95:1 | Fails | Lc -61.2 | Content text, not long reading |
| Black text on #529FC4 | 7.11:1 | AAA | Lc 48.2 | Large or bold text, headings |
| #529FC4 text on white | 2.95:1 | Fails | Lc 55.8 | Large or bold text, headings |
| #529FC4 text on black | 7.11:1 | AAA | Lc -46.0 | 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
#E1ECF1
oklch(93.6% 0.014 226.6)
-
Step 200
200
#C9DDE7
oklch(88.6% 0.025 229.2)
-
Step 300
300
#A4C7D9
oklch(81% 0.045 230.4)
-
Step 400
400
#70A9C6
oklch(70.6% 0.073 231.3)
-
Step 500
500 (this color)
#529FC4
oklch(66.8% 0.094 231.3)
-
Step 600
600
#207DA4
oklch(55.5% 0.102 231.4)
-
Step 700
700
#0F698D
oklch(49% 0.095 232.1)
-
Step 800
800
#135672
oklch(42.7% 0.078 231.4)
-
Step 900
900
#19475C
oklch(37.7% 0.061 231.4)
-
Step 950
950
#102A36
oklch(27.1% 0.039 230.5)
#529FC4 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) | #8D9DC6 | 0.065 |
| Deuteranopia (no green cones) | #7D91C3 | 0.056 |
| Tritanopia (no blue cones) | #00A9AB | 0.065 |
| Achromatopsia (no color) | #969696 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #529FC4
#529FC4
oklch(66.8% 0.094 231.3)
- #C3845E
#C3845E
oklch(66.9% 0.094 51.6)
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 #529FC4, 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 0.052
- Cadet Blue #5F9EA0 ΔE 0.054
- Turquoise Blue #06B1C4 ΔE 0.056
- Silver Lake Blue #778DA9 ΔE 0.061
- Bluegrey #85A3B2 ΔE 0.062
- Blue Grey #758DA3 ΔE 0.064
- Bluey Grey #89A0B0 ΔE 0.064
Use #529FC4 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.