#4F87AA
Closest named color: Dusty Blue (#5A86AD). oklch(59.9% 0.08 237.6), rgb(79, 135, 170).
Aa
Black text reads best on this color (5.37:1).
About this color
#4F87AA is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.080 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.013 away. Black text reads best on it, at 5.37:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.080) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.37:1 |
| White text | 3.90:1 |
Values
| HEX | #4F87AA |
| RGB | rgb(79, 135, 170) |
| HSL | hsl(203, 37%, 49%) |
| OKLCH | oklch(59.9% 0.08 237.6) |
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 #4F87AA | 3.90:1 | AA large text | Lc -71.8 | Content text, not long reading |
| Black text on #4F87AA | 5.37:1 | AA | Lc 37.7 | Non-text elements, placeholder text |
| #4F87AA text on white | 3.90:1 | AA large text | Lc 66.3 | Content text, not long reading |
| #4F87AA text on black | 5.37:1 | AA | Lc -35.3 | 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
#CCDCE6
oklch(88.5% 0.022 235)
-
Step 300
300
#AAC5D7
oklch(80.9% 0.039 237.2)
-
Step 400
400
#7CA7C3
oklch(70.7% 0.062 237.3)
-
Step 500
500 (this color)
#4F87AA
oklch(59.9% 0.08 237.6)
-
Step 600
600
#3C7AA0
oklch(55.5% 0.087 238)
-
Step 700
700
#2E6789
oklch(49.1% 0.081 237.7)
-
Step 800
800
#27546F
oklch(42.7% 0.067 237.5)
-
Step 900
900
#25465A
oklch(37.8% 0.052 236.9)
-
Step 950
950
#162935
oklch(27.1% 0.033 237.5)
#4F87AA 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) | #7786AC | 0.047 |
| Deuteranopia (no green cones) | #6B7DA9 | 0.040 |
| Tritanopia (no blue cones) | #159093 | 0.063 |
| Achromatopsia (no color) | #818181 | 0.080 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #4F87AA
#4F87AA
oklch(59.9% 0.08 237.6)
- #A4744F
#A4744F
oklch(59.9% 0.08 58.1)
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 #4F87AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.013
- Off Blue #5684AE ΔE 0.014
- Steel Blue #4682B4 ΔE 0.026
- Cool Blue #4984B8 ΔE 0.026
- Stormy Blue #507B9C ΔE 0.036
- Blue NCS #118AB2 ΔE 0.037
- Faded Blue #658CBB ΔE 0.039
- Cerulean #457B9D ΔE 0.039
Use #4F87AA 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.