#5287C4
Closest named color: Cool Blue (#4984B8). oklch(61.3% 0.109 253), rgb(82, 135, 196).
Aa
Black text reads best on this color (5.62:1).
About this color
#5287C4 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 61%, its chroma 0.109 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.022 away. Black text reads best on it, at 5.62:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | moderately saturated (0.109) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.62:1 |
| White text | 3.73:1 |
Values
| HEX | #5287C4 |
| RGB | rgb(82, 135, 196) |
| HSL | hsl(212, 49%, 55%) |
| OKLCH | oklch(61.3% 0.109 253) |
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 #5287C4 | 3.73:1 | AA large text | Lc -70.2 | Content text, not long reading |
| Black text on #5287C4 | 5.62:1 | AA | Lc 39.3 | Non-text elements, placeholder text |
| #5287C4 text on white | 3.73:1 | AA large text | Lc 64.7 | Content text, not long reading |
| #5287C4 text on black | 5.62:1 | AA | Lc -36.9 | Non-text elements, placeholder text |
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
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF4
oklch(93.7% 0.015 251.2)
-
Step 200
200
#CCDBED
oklch(88.6% 0.03 253)
-
Step 300
300
#A9C3E3
oklch(80.8% 0.054 253.8)
-
Step 400
400
#7AA4D5
oklch(70.7% 0.086 252.8)
-
Step 500
500 (this color)
#5287C4
oklch(61.3% 0.109 253)
-
Step 600
600
#3B75B7
oklch(55.5% 0.12 253.3)
-
Step 700
700
#2D629D
oklch(49% 0.111 253.1)
-
Step 800
800
#27517F
oklch(42.8% 0.09 252.5)
-
Step 900
900
#244366
oklch(37.7% 0.071 252.7)
-
Step 950
950
#16273C
oklch(26.9% 0.046 254.4)
#5287C4 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) | #6E8AC7 | 0.034 |
| Deuteranopia (no green cones) | #5F7FC3 | 0.024 |
| Tritanopia (no blue cones) | #00959D | 0.093 |
| Achromatopsia (no color) | #848484 | 0.109 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #5287C4
#5287C4
oklch(61.3% 0.109 253)
- #AC792F
#AC792F
oklch(61.4% 0.109 72.9)
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 #5287C4, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.022
- Steel Blue #4682B4 ΔE 0.030
- Faded Blue #658CBB ΔE 0.031
- Off Blue #5684AE ΔE 0.033
- Dusty Blue #5A86AD ΔE 0.035
- Water Blue #0E87CC ΔE 0.041
- Dark Sky Blue #448EE4 ΔE 0.048
- Windows Blue #3778BF ΔE 0.052
Use #5287C4 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.