#6587A0
Closest named color: Steel (#738595). oklch(60.7% 0.054 240.6), rgb(101, 135, 160).
Aa
Black text reads best on this color (5.52:1).
About this color
#6587A0 is a medium-dark, muted blue. In OKLCH its lightness is 61%, its chroma 0.054 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Steel (#738595), ΔE 0.022 away. Black text reads best on it, at 5.52:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.054) |
| Temperature | cool |
| Nearest name | Steel (#738595) |
| Black text | 5.52:1 |
| White text | 3.79:1 |
Values
| HEX | #6587A0 |
| RGB | rgb(101, 135, 160) |
| HSL | hsl(205, 24%, 51%) |
| OKLCH | oklch(60.7% 0.054 240.6) |
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 #6587A0 | 3.79:1 | AA large text | Lc -71.0 | Content text, not long reading |
| Black text on #6587A0 | 5.52:1 | AA | Lc 38.6 | Non-text elements, placeholder text |
| #6587A0 text on white | 3.79:1 | AA large text | Lc 65.5 | Content text, not long reading |
| #6587A0 text on black | 5.52:1 | AA | Lc -36.2 | 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
#F3F6F8
oklch(97.1% 0.004 236.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#D1DBE2
oklch(88.6% 0.015 238)
-
Step 300
300
#B2C3D0
oklch(80.8% 0.026 240.7)
-
Step 400
400
#8AA5B9
oklch(70.8% 0.042 240.3)
-
Step 500
500 (this color)
#6587A0
oklch(60.7% 0.054 240.6)
-
Step 600
600
#537893
oklch(55.6% 0.059 240.8)
-
Step 700
700
#44657D
oklch(49.1% 0.054 240.8)
-
Step 800
800
#385266
oklch(42.6% 0.046 242.2)
-
Step 900
900
#304453
oklch(37.6% 0.036 241.3)
-
Step 950
950
#1D2830
oklch(27% 0.021 240.1)
#6587A0 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) | #7C86A1 | 0.030 |
| Deuteranopia (no green cones) | #7480A0 | 0.026 |
| Tritanopia (no blue cones) | #518D8F | 0.043 |
| Achromatopsia (no color) | #838383 | 0.054 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6587A0
#6587A0
oklch(60.7% 0.054 240.6)
- #9B7B61
#9B7B61
oklch(60.7% 0.055 60.6)
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 #6587A0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel #738595 ΔE 0.022
- Dusty Blue #5A86AD ΔE 0.024
- Light Slate Gray #778899 ΔE 0.025
- Slate Gray #708090 ΔE 0.028
- Blue Grey #758DA3 ΔE 0.028
- Off Blue #5684AE ΔE 0.030
- Silver Lake Blue #778DA9 ΔE 0.032
- Steel Grey #6F828A ΔE 0.033
Use #6587A0 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.