#65839B
Closest named color: Slate Gray (#708090). oklch(59.6% 0.05 242.8), rgb(101, 131, 155).
Aa
Black text reads best on this color (5.27:1).
About this color
#65839B is a medium-dark, muted blue. In OKLCH its lightness is 60%, its chroma 0.050 and its hue 243°. Its hue sits on the cool side of the wheel. The nearest named color is Slate Gray (#708090), ΔE 0.020 away. Black text reads best on it, at 5.27:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Slate Gray (#708090) |
| Black text | 5.27:1 |
| White text | 3.98:1 |
Values
| HEX | #65839B |
| RGB | rgb(101, 131, 155) |
| HSL | hsl(207, 21%, 50%) |
| OKLCH | oklch(59.6% 0.05 242.8) |
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 #65839B | 3.98:1 | AA large text | Lc -72.6 | Content text, not long reading |
| Black text on #65839B | 5.27:1 | AA | Lc 37.0 | Non-text elements, placeholder text |
| #65839B text on white | 3.98:1 | AA large text | Lc 67.1 | Content text, not long reading |
| #65839B text on black | 5.27:1 | AA | Lc -34.5 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAEE
oklch(93.5% 0.007 247.9)
-
Step 200
200
#D2DAE2
oklch(88.5% 0.014 248)
-
Step 300
300
#B4C3D0
oklch(81% 0.025 244.2)
-
Step 400
400
#8CA4B8
oklch(70.7% 0.04 243.5)
-
Step 500
500 (this color)
#65839B
oklch(59.6% 0.05 242.8)
-
Step 600
600
#577791
oklch(55.5% 0.055 243.5)
-
Step 700
700
#47647C
oklch(49% 0.052 244.1)
-
Step 800
800
#3B5264
oklch(42.7% 0.041 242.4)
-
Step 900
900
#324452
oklch(37.7% 0.033 242.1)
-
Step 950
950
#1E2830
oklch(27.1% 0.02 242.7)
#65839B 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) | #79839C | 0.027 |
| Deuteranopia (no green cones) | #727D9B | 0.023 |
| Tritanopia (no blue cones) | #53898B | 0.041 |
| Achromatopsia (no color) | #7F7F7F | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #65839B
#65839B
oklch(59.6% 0.05 242.8)
- #957960
#957960
oklch(59.6% 0.05 63.4)
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 #65839B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Slate Gray #708090 ΔE 0.020
- Steel #738595 ΔE 0.022
- Grey Blue #647D8E ΔE 0.023
- Steel Grey #6F828A ΔE 0.027
- Dusty Blue #5A86AD ΔE 0.028
- Light Slate Gray #778899 ΔE 0.029
- Off Blue #5684AE ΔE 0.032
- Battleship Grey #6B7C85 ΔE 0.034
Use #65839B 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.