#83999A
Closest named color: Cool Gray (#8D99AE). oklch(66.6% 0.025 199.9), rgb(131, 153, 154).
Aa
Black text reads best on this color (6.98:1).
About this color
#83999A is a medium-light close to neutral grey. In OKLCH its lightness is 67%, its chroma 0.025. It has too little chroma to lean warm or cool. The nearest named color is Cool Gray (#8D99AE), ΔE 0.034 away. Black text reads best on it, at 6.98:1.
| Hue family | Neutrals |
| Lightness | medium-light (67%) |
| Chroma | close to neutral grey (0.025) |
| Temperature | neutral |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 6.98:1 |
| White text | 3.00:1 |
Values
| HEX | #83999A |
| RGB | rgb(131, 153, 154) |
| HSL | hsl(183, 10%, 56%) |
| OKLCH | oklch(66.6% 0.025 199.9) |
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 #83999A | 3.00:1 | AA large text | Lc -62.1 | Content text, not long reading |
| Black text on #83999A | 6.98:1 | AA | Lc 47.3 | Large or bold text, headings |
| #83999A text on white | 3.00:1 | AA large text | Lc 56.8 | Large or bold text, headings |
| #83999A text on black | 6.98:1 | AA | Lc -45.0 | Large or bold text, headings |
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
#F4F6F6
oklch(97.2% 0.002 197.1)
-
Step 100
100
#E7EAEB
oklch(93.5% 0.004 219.5)
-
Step 200
200
#D4DADB
oklch(88.4% 0.007 208.8)
-
Step 300
300
#B8C3C4
oklch(80.9% 0.012 203.4)
-
Step 400
400
#93A4A5
oklch(70.6% 0.019 201)
-
Step 500
500 (this color)
#83999A
oklch(66.6% 0.025 199.9)
-
Step 600
600
#617879
oklch(55.5% 0.027 199.7)
-
Step 700
700
#506566
oklch(49% 0.025 200)
-
Step 800
800
#425353
oklch(42.8% 0.021 196.4)
-
Step 900
900
#384445
oklch(37.6% 0.016 202.7)
-
Step 950
950
#212828
oklch(27% 0.01 196.6)
#83999A 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) | #96979A | 0.026 |
| Deuteranopia (no green cones) | #91939A | 0.024 |
| Tritanopia (no blue cones) | #7C9B99 | 0.011 |
| Achromatopsia (no color) | #959595 | 0.025 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #83999A
#83999A
oklch(66.6% 0.025 199.9)
- #A38E8E
#A38E8E
oklch(66.6% 0.025 17.8)
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 #83999A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.034
- Bluey Grey #89A0B0 ΔE 0.035
- Bluegrey #85A3B2 ΔE 0.039
- Greyblue #77A1B5 ΔE 0.040
- Cool Grey #95A3A6 ΔE 0.040
- Cadet Blue #5F9EA0 ΔE 0.041
- Blue Grey #758DA3 ΔE 0.046
- Warm Grey #978A84 ΔE 0.048
Use #83999A 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.