#919BBC
Closest named color: Cool Gray (#8D99AE). oklch(69.3% 0.05 271.8), rgb(145, 155, 188).
Aa
Black text reads best on this color (7.61:1).
About this color
#919BBC is a medium-light, muted blue. In OKLCH its lightness is 69%, its chroma 0.050 and its hue 272°. Its hue sits on the cool side of the wheel. The nearest named color is Cool Gray (#8D99AE), ΔE 0.022 away. Black text reads best on it, at 7.61:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | muted (0.050) |
| Temperature | cool |
| Nearest name | Cool Gray (#8D99AE) |
| Black text | 7.61:1 |
| White text | 2.75:1 |
Values
| HEX | #919BBC |
| RGB | rgb(145, 155, 188) |
| HSL | hsl(226, 24%, 65%) |
| OKLCH | oklch(69.3% 0.05 271.8) |
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 #919BBC | 2.75:1 | Fails | Lc -58.5 | Large or bold text, headings |
| Black text on #919BBC | 7.61:1 | AAA | Lc 50.8 | Large or bold text, headings |
| #919BBC text on white | 2.75:1 | Fails | Lc 53.2 | Large or bold text, headings |
| #919BBC 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
#E7EAF0
oklch(93.6% 0.009 264.5)
-
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)
#919BBC
oklch(69.3% 0.05 271.8)
-
Step 500
500
#7C88B1
oklch(63.2% 0.063 271.8)
-
Step 600
600
#65719C
oklch(55.6% 0.069 272)
-
Step 700
700
#545F86
oklch(49.2% 0.064 271.8)
-
Step 800
800
#444D6D
oklch(42.6% 0.055 271.8)
-
Step 900
900
#3A4058
oklch(37.6% 0.042 273.4)
-
Step 950
950
#222634
oklch(27.1% 0.027 272.1)
#919BBC 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) | #919EBE | 0.008 |
| Deuteranopia (no green cones) | #8E9ABB | 0.005 |
| Tritanopia (no blue cones) | #87A1A6 | 0.044 |
| Achromatopsia (no color) | #9C9C9C | 0.050 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #919BBC
#919BBC
oklch(69.3% 0.05 271.8)
- #A79C79
#A79C79
oklch(69.3% 0.05 92.7)
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 #919BBC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cool Gray #8D99AE ΔE 0.022
- Bluey Grey #89A0B0 ΔE 0.028
- Bluegrey #85A3B2 ΔE 0.034
- Greyblue #77A1B5 ΔE 0.039
- Cool Steel #97A7B3 ΔE 0.041
- Cool Grey #95A3A6 ΔE 0.046
- Silver Lake Blue #778DA9 ΔE 0.059
- Heather #A484AC ΔE 0.062
Use #919BBC 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.