#7C99AB
Closest named color: Greyblue (#77A1B5). oklch(66.7% 0.042 235.5), rgb(124, 153, 171).
Aa
Black text reads best on this color (7.00:1).
About this color
#7C99AB is a medium-light, muted blue. In OKLCH its lightness is 67%, its chroma 0.042 and its hue 236°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.023 away. Black text reads best on it, at 7.00:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | muted (0.042) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.00:1 |
| White text | 2.99:1 |
Values
| HEX | #7C99AB |
| RGB | rgb(124, 153, 171) |
| HSL | hsl(203, 22%, 58%) |
| OKLCH | oklch(66.7% 0.042 235.5) |
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 #7C99AB | 2.99:1 | Fails | Lc -62.0 | Content text, not long reading |
| Black text on #7C99AB | 7.00:1 | AAA | Lc 47.4 | Large or bold text, headings |
| #7C99AB text on white | 2.99:1 | Fails | Lc 56.7 | Large or bold text, headings |
| #7C99AB text on black | 7.00:1 | AAA | Lc -45.1 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAED
oklch(93.5% 0.006 239.8)
-
Step 200
200
#D2DAE0
oklch(88.4% 0.012 239.9)
-
Step 300
300
#B5C3CC
oklch(80.9% 0.02 235.8)
-
Step 400
400
#8EA4B3
oklch(70.7% 0.033 237.8)
-
Step 500
500 (this color)
#7C99AB
oklch(66.7% 0.042 235.5)
-
Step 600
600
#59788B
oklch(55.6% 0.046 235.6)
-
Step 700
700
#496576
oklch(49.1% 0.043 235.4)
-
Step 800
800
#3C5260
oklch(42.6% 0.036 236.6)
-
Step 900
900
#34444E
oklch(37.7% 0.027 235.9)
-
Step 950
950
#1E282E
oklch(27% 0.018 234.7)
#7C99AB 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) | #9198AC | 0.028 |
| Deuteranopia (no green cones) | #8A93AB | 0.024 |
| Tritanopia (no blue cones) | #6E9E9F | 0.032 |
| Achromatopsia (no color) | #959595 | 0.042 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #7C99AB
#7C99AB
oklch(66.7% 0.042 235.5)
- #A98E7C
#A98E7C
oklch(66.6% 0.042 55.6)
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 #7C99AB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.023
- Cool Gray #8D99AE ΔE 0.023
- Bluey Grey #89A0B0 ΔE 0.027
- Bluegrey #85A3B2 ΔE 0.031
- Silver Lake Blue #778DA9 ΔE 0.035
- Blue Grey #758DA3 ΔE 0.036
- Cadet Blue #5F9EA0 ΔE 0.042
- Cool Grey #95A3A6 ΔE 0.047
Use #7C99AB 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.