#6389AA
Closest named color: Dusty Blue (#5A86AD). oklch(61.5% 0.066 245.4), rgb(99, 137, 170).
Aa
Black text reads best on this color (5.68:1).
About this color
#6389AA is a medium-dark, muted blue. In OKLCH its lightness is 61%, its chroma 0.066 and its hue 245°. Its hue sits on the cool side of the wheel. The nearest named color is Dusty Blue (#5A86AD), ΔE 0.016 away. Black text reads best on it, at 5.68:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Dusty Blue (#5A86AD) |
| Black text | 5.68:1 |
| White text | 3.69:1 |
Values
| HEX | #6389AA |
| RGB | rgb(99, 137, 170) |
| HSL | hsl(208, 29%, 53%) |
| OKLCH | oklch(61.5% 0.066 245.4) |
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 #6389AA | 3.69:1 | AA large text | Lc -69.9 | Content text, not long reading |
| Black text on #6389AA | 5.68:1 | AA | Lc 39.6 | Non-text elements, placeholder text |
| #6389AA text on white | 3.69:1 | AA large text | Lc 64.4 | Content text, not long reading |
| #6389AA text on black | 5.68:1 | AA | Lc -37.2 | 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
#E5EBF0
oklch(93.7% 0.009 242.8)
-
Step 200
200
#D0DBE4
oklch(88.6% 0.017 242.5)
-
Step 300
300
#B0C3D5
oklch(80.8% 0.033 246.8)
-
Step 400
400
#86A5BF
oklch(70.8% 0.051 243.9)
-
Step 500
500 (this color)
#6389AA
oklch(61.5% 0.066 245.4)
-
Step 600
600
#4F789B
oklch(55.7% 0.071 245.3)
-
Step 700
700
#3F6584
oklch(49.2% 0.066 244.3)
-
Step 800
800
#35526B
oklch(42.7% 0.054 245.5)
-
Step 900
900
#2E4457
oklch(37.7% 0.043 245.3)
-
Step 950
950
#1B2833
oklch(27% 0.027 244.6)
#6389AA 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) | #7C89AC | 0.032 |
| Deuteranopia (no green cones) | #7282A9 | 0.025 |
| Tritanopia (no blue cones) | #489194 | 0.055 |
| Achromatopsia (no color) | #858585 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6389AA
#6389AA
oklch(61.5% 0.066 245.4)
- #A07D5A
#A07D5A
oklch(61.5% 0.066 66.1)
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 #6389AA, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dusty Blue #5A86AD ΔE 0.016
- Off Blue #5684AE ΔE 0.024
- Faded Blue #658CBB ΔE 0.026
- Silver Lake Blue #778DA9 ΔE 0.029
- Blue Grey #758DA3 ΔE 0.029
- Light Slate Gray #778899 ΔE 0.034
- Steel #738595 ΔE 0.034
- Cool Blue #4984B8 ΔE 0.040
Use #6389AA 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.