#7F8599
Closest named color: Light Slate Gray (#778899). oklch(61.9% 0.031 272.3), rgb(127, 133, 153).
Aa
Black text reads best on this color (5.71:1).
About this color
#7F8599 is a medium-dark, muted blue. In OKLCH its lightness is 62%, its chroma 0.031 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Light Slate Gray (#778899), ΔE 0.013 away. Black text reads best on it, at 5.71:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | muted (0.031) |
| Temperature | cool |
| Nearest name | Light Slate Gray (#778899) |
| Black text | 5.71:1 |
| White text | 3.67:1 |
Values
| HEX | #7F8599 |
| RGB | rgb(127, 133, 153) |
| HSL | hsl(226, 11%, 55%) |
| OKLCH | oklch(61.9% 0.031 272.3) |
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 #7F8599 | 3.67:1 | AA large text | Lc -69.8 | Content text, not long reading |
| Black text on #7F8599 | 5.71:1 | AA | Lc 39.7 | Non-text elements, placeholder text |
| #7F8599 text on white | 3.67:1 | AA large text | Lc 64.3 | Content text, not long reading |
| #7F8599 text on black | 5.71:1 | AA | Lc -37.3 | 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
#F5F5F7
oklch(97.1% 0.003 286.4)
-
Step 100
100
#E9EAED
oklch(93.7% 0.004 271.4)
-
Step 200
200
#D7D9DF
oklch(88.6% 0.008 271.3)
-
Step 300
300
#BDC0CB
oklch(80.9% 0.016 273.8)
-
Step 400
400
#9BA0B0
oklch(70.7% 0.024 271.9)
-
Step 500
500 (this color)
#7F8599
oklch(61.9% 0.031 272.3)
-
Step 600
600
#6C7288
oklch(55.5% 0.035 273.2)
-
Step 700
700
#5A6073
oklch(49.1% 0.031 271.4)
-
Step 800
800
#4A4E5E
oklch(42.6% 0.027 274.2)
-
Step 900
900
#3E414D
oklch(37.7% 0.021 274.3)
-
Step 950
950
#24262D
oklch(27% 0.013 272.9)
#7F8599 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) | #7F869A | 0.003 |
| Deuteranopia (no green cones) | #7E8498 | 0.003 |
| Tritanopia (no blue cones) | #79898B | 0.029 |
| Achromatopsia (no color) | #858585 | 0.031 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7F8599
#7F8599
oklch(61.9% 0.031 272.3)
- #8C8671
#8C8671
oklch(61.9% 0.031 93.9)
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 #7F8599, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Slate Gray #778899 ΔE 0.013
- Lavender Gray #7E7F9A ΔE 0.018
- Steel #738595 ΔE 0.018
- Blue Grey #758DA3 ΔE 0.025
- Silver Lake Blue #778DA9 ΔE 0.028
- Slate Gray #708090 ΔE 0.029
- Steel Grey #6F828A ΔE 0.034
- Purpley Grey #947E94 ΔE 0.034
Use #7F8599 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.