#4B87AC
Closest named color: Off Blue (#5684AE). oklch(59.8% 0.084 237.5), rgb(75, 135, 172).
Aa
Black text reads best on this color (5.36:1).
About this color
#4B87AC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.084 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Off Blue (#5684AE), ΔE 0.014 away. Black text reads best on it, at 5.36:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.084) |
| Temperature | cool |
| Nearest name | Off Blue (#5684AE) |
| Black text | 5.36:1 |
| White text | 3.91:1 |
Values
| HEX | #4B87AC |
| RGB | rgb(75, 135, 172) |
| HSL | hsl(203, 39%, 48%) |
| OKLCH | oklch(59.8% 0.084 237.5) |
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 #4B87AC | 3.91:1 | AA large text | Lc -71.9 | Content text, not long reading |
| Black text on #4B87AC | 5.36:1 | AA | Lc 37.6 | Non-text elements, placeholder text |
| #4B87AC text on white | 3.91:1 | AA large text | Lc 66.4 | Content text, not long reading |
| #4B87AC text on black | 5.36:1 | AA | Lc -35.2 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDCE7
oklch(88.6% 0.023 237.7)
-
Step 300
300
#A9C5D8
oklch(80.9% 0.041 237.7)
-
Step 400
400
#79A7C5
oklch(70.6% 0.066 237.5)
-
Step 500
500 (this color)
#4B87AC
oklch(59.8% 0.084 237.5)
-
Step 600
600
#377BA2
oklch(55.6% 0.091 236.8)
-
Step 700
700
#29678B
oklch(49% 0.085 237.7)
-
Step 800
800
#245471
oklch(42.6% 0.071 238.1)
-
Step 900
900
#23465B
oklch(37.8% 0.054 236.9)
-
Step 950
950
#152935
oklch(27% 0.034 236.3)
#4B87AC 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) | #7686AE | 0.050 |
| Deuteranopia (no green cones) | #697CAB | 0.043 |
| Tritanopia (no blue cones) | #009093 | 0.066 |
| Achromatopsia (no color) | #818181 | 0.085 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4B87AC
#4B87AC
oklch(59.8% 0.084 237.5)
- #A6734C
#A6734C
oklch(59.9% 0.084 57.7)
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 #4B87AC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Off Blue #5684AE ΔE 0.014
- Dusty Blue #5A86AD ΔE 0.015
- Steel Blue #4682B4 ΔE 0.022
- Cool Blue #4984B8 ΔE 0.023
- Blue NCS #118AB2 ΔE 0.033
- Stormy Blue #507B9C ΔE 0.037
- Cerulean #457B9D ΔE 0.039
- Faded Blue #658CBB ΔE 0.040
Use #4B87AC 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.