#99AEBE
Closest named color: Cool Steel (#97A7B3). oklch(74% 0.033 240.8), rgb(153, 174, 190).
Aa
Black text reads best on this color (9.15:1).
About this color
#99AEBE is a medium-light, muted blue. In OKLCH its lightness is 74%, its chroma 0.033 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Steel (#97A7B3), ΔE 0.022 away. Black text reads best on it, at 9.15:1.
| Hue family | Blues |
| Lightness | medium-light (74%) |
| Chroma | muted (0.033) |
| Temperature | cool |
| Nearest name | Cool Steel (#97A7B3) |
| Black text | 9.15:1 |
| White text | 2.29:1 |
Values
| HEX | #99AEBE |
| RGB | rgb(153, 174, 190) |
| HSL | hsl(206, 22%, 67%) |
| OKLCH | oklch(74% 0.033 240.8) |
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 #99AEBE | 2.29:1 | Fails | Lc -50.1 | Large or bold text, headings |
| Black text on #99AEBE | 9.15:1 | AAA | Lc 58.7 | Large or bold text, headings |
| #99AEBE text on white | 2.29:1 | Fails | Lc 45.3 | Large or bold text, headings |
| #99AEBE text on black | 9.15:1 | AAA | Lc -56.8 | 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 400.
-
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
#D3DAE0
oklch(88.5% 0.011 243.7)
-
Step 300
300
#B5C3CD
oklch(80.9% 0.021 238.7)
-
Step 400
400 (this color)
#99AEBE
oklch(74% 0.033 240.8)
-
Step 500
500
#738DA1
oklch(63% 0.042 241.4)
-
Step 600
600
#5B778C
oklch(55.5% 0.046 241)
-
Step 700
700
#4B6477
oklch(49.1% 0.043 241.5)
-
Step 800
800
#3E5261
oklch(42.8% 0.035 241)
-
Step 900
900
#35444F
oklch(37.8% 0.027 240.2)
-
Step 950
950
#1F282E
oklch(27.1% 0.017 237.4)
#99AEBE 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) | #A7ADBF | 0.019 |
| Deuteranopia (no green cones) | #A3A9BE | 0.018 |
| Tritanopia (no blue cones) | #8FB2B3 | 0.026 |
| Achromatopsia (no color) | #ABABAB | 0.033 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #99AEBE
#99AEBE
oklch(74% 0.033 240.8)
- #BBA796
#BBA796
oklch(74.1% 0.033 62.7)
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 #99AEBE, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Steel #97A7B3 ΔE 0.022
- Dark Gray #A9A9A9 ΔE 0.033
- French Gray #ADB5BD ΔE 0.035
- Cool Grey #95A3A6 ΔE 0.040
- Pewter #96A8A1 ΔE 0.041
- Light Grey Blue #9DBCD4 ΔE 0.043
- Bluegrey #85A3B2 ΔE 0.043
- Bluey Grey #89A0B0 ΔE 0.047
Use #99AEBE 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.