#6570A0
Closest named color: Dull Blue (#49759C). oklch(55.6% 0.076 273.8), rgb(101, 112, 160).
Aa
White text reads best on this color (4.79:1).
About this color
#6570A0 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 56%, its chroma 0.076 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.037 away. White text reads best on it, at 4.79:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | moderately saturated (0.076) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.37:1 |
| White text | 4.79:1 |
Values
| HEX | #6570A0 |
| RGB | rgb(101, 112, 160) |
| HSL | hsl(229, 24%, 51%) |
| OKLCH | oklch(55.6% 0.076 273.8) |
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 #6570A0 | 4.79:1 | AA | Lc -78.7 | Fine for body text |
| Black text on #6570A0 | 4.37:1 | AA large text | Lc 30.8 | Non-text elements, placeholder text |
| #6570A0 text on white | 4.79:1 | AA | Lc 73.2 | Content text, not long reading |
| #6570A0 text on black | 4.37:1 | AA large text | Lc -28.4 | Dividers and decoration only |
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 600.
-
Step 50
50
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7E9F1
oklch(93.5% 0.011 274.9)
-
Step 200
200
#D5D9E6
oklch(88.6% 0.018 272.3)
-
Step 300
300
#B9C0D7
oklch(81% 0.033 272.2)
-
Step 400
400
#959FC3
oklch(70.7% 0.054 272.8)
-
Step 500
500
#7C87B4
oklch(63.2% 0.069 273.6)
-
Step 600
600 (this color)
#6570A0
oklch(55.6% 0.076 273.8)
-
Step 700
700
#545E89
oklch(49.2% 0.07 273.5)
-
Step 800
800
#454D6F
oklch(42.8% 0.057 273.6)
-
Step 900
900
#3A405A
oklch(37.7% 0.045 274)
-
Step 950
950
#222635
oklch(27.2% 0.029 272.8)
#6570A0 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) | #6175A2 | 0.014 |
| Deuteranopia (no green cones) | #5C709F | 0.012 |
| Tritanopia (no blue cones) | #547981 | 0.067 |
| Achromatopsia (no color) | #727272 | 0.076 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6570A0
#6570A0
oklch(55.6% 0.076 273.8)
- #82723C
#82723C
oklch(55.5% 0.076 93.3)
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 #6570A0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.037
- Stormy Blue #507B9C ΔE 0.041
- Metallic Blue #4F738E ΔE 0.044
- Flat Blue #3C73A8 ΔE 0.047
- Cerulean #457B9D ΔE 0.048
- Muted Blue #3B719F ΔE 0.049
- French Blue #436BAD ΔE 0.051
- Grey Purple #826D8C ΔE 0.051
Use #6570A0 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.