#919BBB
Closest named color: Cool Gray (#8D99AE). oklch(69.3% 0.048 271.5), rgb(145, 155, 187).
Aa
Black text reads best on this color (7.61:1).
About this color
#919BBB is a medium-light, muted blue. In OKLCH its lightness is 69%, its chroma 0.048 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.020 away. Black text reads best on it, at 7.61:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.61:1 |
| White text | 2.75:1 |
Values
| HEX | #919BBB |
| RGB | rgb(145, 155, 187) |
| HSL | hsl(226, 24%, 65%) |
| OKLCH | oklch(69.3% 0.048 271.5) |
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 #919BBB | 2.75:1 | Fails | Lc -58.5 | Large or bold text, headings |
| Black text on #919BBB | 7.61:1 | AAA | Lc 50.7 | Large or bold text, headings |
| #919BBB text on white | 2.75:1 | Fails | Lc 53.3 | Large or bold text, headings |
| #919BBB text on black | 7.61:1 | AAA | Lc -48.6 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E8EAF0
oklch(93.7% 0.008 271.3)
-
Step 200
200
#D5D9E5
oklch(88.6% 0.017 271.2)
-
Step 300
300
#B9C0D5
oklch(80.9% 0.031 271)
-
Step 400
400 (this color)
#919BBB
oklch(69.3% 0.048 271.5)
-
Step 500
500
#7C88B0
oklch(63.2% 0.062 271.6)
-
Step 600
600
#65719B
oklch(55.5% 0.067 271.8)
-
Step 700
700
#545F85
oklch(49.2% 0.063 271.5)
-
Step 800
800
#454D6C
oklch(42.6% 0.053 272.9)
-
Step 900
900
#3A4157
oklch(37.8% 0.039 270.8)
-
Step 950
950
#222633
oklch(27.1% 0.025 271.4)
#919BBB 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) | #929DBD | 0.006 |
| Deuteranopia (no green cones) | #8F9ABA | 0.004 |
| Tritanopia (no blue cones) | #87A1A6 | 0.043 |
| Achromatopsia (no color) | #9C9C9C | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #919BBB
#919BBB
oklch(69.3% 0.048 271.5)
- #A79C7A
#A79C7A
oklch(69.3% 0.049 92.3)
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 #919BBB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.020
- Bluey Grey #89A0B0 ΔE 0.027
- Bluegrey #85A3B2 ΔE 0.033
- Greyblue #77A1B5 ΔE 0.038
- Cool Steel #97A7B3 ΔE 0.040
- Cool Grey #95A3A6 ΔE 0.044
- Silver Lake Blue #778DA9 ΔE 0.058
- Pewter #96A8A1 ΔE 0.062
Use #919BBB 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.