#6587AC
Closest named color: Dusty Blue (#5A86AD). oklch(61.2% 0.068 251.1), rgb(101, 135, 172).
Aa
Black text reads best on this color (5.61:1).
About this color
#6587AC is a medium-dark, muted blue. In OKLCH its lightness is 61%, its chroma 0.068 and its hue 251°. 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 5.61:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.61:1 |
| White text | 3.74:1 |
Values
| HEX | #6587AC |
| RGB | rgb(101, 135, 172) |
| HSL | hsl(211, 30%, 54%) |
| OKLCH | oklch(61.2% 0.068 251.1) |
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 #6587AC | 3.74:1 | AA large text | Lc -70.4 | Content text, not long reading |
| Black text on #6587AC | 5.61:1 | AA | Lc 39.2 | Non-text elements, placeholder text |
| #6587AC text on white | 3.74:1 | AA large text | Lc 64.9 | Content text, not long reading |
| #6587AC text on black | 5.61:1 | AA | Lc -36.8 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EAF0
oklch(93.5% 0.01 252.8)
-
Step 200
200
#D0DAE5
oklch(88.4% 0.019 250.6)
-
Step 300
300
#B1C3D6
oklch(81% 0.033 249.7)
-
Step 400
400
#88A4C1
oklch(70.8% 0.053 249.5)
-
Step 500
500 (this color)
#6587AC
oklch(61.2% 0.068 251.1)
-
Step 600
600
#52769E
oklch(55.5% 0.075 251.8)
-
Step 700
700
#426387
oklch(49% 0.07 251.4)
-
Step 800
800
#37516E
oklch(42.7% 0.058 251.9)
-
Step 900
900
#304359
oklch(37.7% 0.045 252.6)
-
Step 950
950
#1C2734
oklch(26.9% 0.029 253)
#6587AC 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) | #7988AE | 0.026 |
| Deuteranopia (no green cones) | #7081AB | 0.020 |
| Tritanopia (no blue cones) | #4B8F93 | 0.059 |
| Achromatopsia (no color) | #848484 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6587AC
#6587AC
oklch(61.2% 0.068 251.1)
- #9E7D56
#9E7D56
oklch(61.2% 0.068 70.7)
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 #6587AC, 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 0.021
- Faded Blue #658CBB ΔE 0.024
- Silver Lake Blue #778DA9 ΔE 0.031
- Blue Grey #758DA3 ΔE 0.033
- Light Slate Gray #778899 ΔE 0.037
- Steel #738595 ΔE 0.037
- Cool Blue #4984B8 ΔE 0.037
Use #6587AC 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.