#4B87CE
Closest named color: Cool Blue (#4984B8). oklch(61.5% 0.125 253.9), rgb(75, 135, 206).
Aa
Black text reads best on this color (5.65:1).
About this color
#4B87CE is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.125 and its hue 254°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Blue (#4984B8), ΔE 0.034 away. Black text reads best on it, at 5.65:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Cool Blue (#4984B8) |
| Black text | 5.65:1 |
| White text | 3.71:1 |
Values
| HEX | #4B87CE |
| RGB | rgb(75, 135, 206) |
| HSL | hsl(213, 57%, 55%) |
| OKLCH | oklch(61.5% 0.125 253.9) |
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 #4B87CE | 3.71:1 | AA large text | Lc -70.0 | Content text, not long reading |
| Black text on #4B87CE | 5.65:1 | AA | Lc 39.6 | Non-text elements, placeholder text |
| #4B87CE text on white | 3.71:1 | AA large text | Lc 64.5 | Content text, not long reading |
| #4B87CE text on black | 5.65:1 | AA | Lc -37.2 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CADBF0
oklch(88.5% 0.034 253.7)
-
Step 300
300
#A6C3E8
oklch(80.8% 0.061 254.7)
-
Step 400
400
#75A4DD
oklch(70.8% 0.098 253.8)
-
Step 500
500 (this color)
#4B87CE
oklch(61.5% 0.125 253.9)
-
Step 600
600
#3274C0
oklch(55.5% 0.136 254.1)
-
Step 700
700
#2461A6
oklch(49% 0.127 254.1)
-
Step 800
800
#205087
oklch(42.8% 0.105 254)
-
Step 900
900
#20436C
oklch(37.8% 0.081 253.8)
-
Step 950
950
#13273F
oklch(26.9% 0.052 254)
#4B87CE 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) | #688BD1 | 0.034 |
| Deuteranopia (no green cones) | #567FCD | 0.023 |
| Tritanopia (no blue cones) | #0097A1 | 0.100 |
| Achromatopsia (no color) | #858585 | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B87CE
#4B87CE
oklch(61.5% 0.125 253.9)
- #B17713
#B17713
oklch(61.5% 0.125 73.5)
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 #4B87CE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Blue #4984B8 ΔE 0.034
- Water Blue #0E87CC ΔE 0.034
- Dark Sky Blue #448EE4 ΔE 0.035
- Steel Blue #4682B4 ΔE 0.041
- Faded Blue #658CBB ΔE 0.044
- Off Blue #5684AE ΔE 0.048
- Windows Blue #3778BF ΔE 0.051
- Dusty Blue #5A86AD ΔE 0.051
Use #4B87CE 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.