#979FDF
Closest named color: Periwinkle Blue (#8F99FB). oklch(72% 0.094 278.3), rgb(151, 159, 223).
Aa
Black text reads best on this color (8.34:1).
About this color
#979FDF is a medium-light, moderately saturated blue. In OKLCH its lightness is 72%, its chroma 0.094 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.049 away. Black text reads best on it, at 8.34:1.
| Hue family | Blues |
| Lightness | medium-light (72%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.34:1 |
| White text | 2.51:1 |
Values
| HEX | #979FDF |
| RGB | rgb(151, 159, 223) |
| HSL | hsl(233, 53%, 73%) |
| OKLCH | oklch(72% 0.094 278.3) |
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 #979FDF | 2.51:1 | Fails | Lc -54.4 | Large or bold text, headings |
| Black text on #979FDF | 8.34:1 | AAA | Lc 54.7 | Large or bold text, headings |
| #979FDF text on white | 2.51:1 | Fails | Lc 49.4 | Large or bold text, headings |
| #979FDF text on black | 8.34:1 | AAA | Lc -52.6 | 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
#F4F5FB
oklch(97.1% 0.008 278.6)
-
Step 100
100
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D4D8EF
oklch(88.6% 0.032 277.9)
-
Step 300
300
#B7BEE7
oklch(81% 0.058 277.4)
-
Step 400
400 (this color)
#979FDF
oklch(72% 0.094 278.3)
-
Step 500
500
#7981D1
oklch(63.1% 0.12 278)
-
Step 600
600
#6369BE
oklch(55.6% 0.13 278.2)
-
Step 700
700
#5257A4
oklch(49.1% 0.122 278.1)
-
Step 800
800
#434885
oklch(42.8% 0.1 277.7)
-
Step 900
900
#383C6A
oklch(37.6% 0.078 278.2)
-
Step 950
950
#21243E
oklch(27.1% 0.048 277.6)
#979FDF 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) | #8CA6E2 | 0.021 |
| Deuteranopia (no green cones) | #87A1DD | 0.021 |
| Tritanopia (no blue cones) | #84ABB6 | 0.082 |
| Achromatopsia (no color) | #A3A3A3 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #979FDF
#979FDF
oklch(72% 0.094 278.3)
- #B4A65E
#B4A65E
oklch(72.1% 0.094 98.6)
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 #979FDF, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.049
- Pale Purple #B790D4 ΔE 0.056
- Perrywinkle #8F8CE7 ΔE 0.056
- Carolina Blue #8AB8FE ΔE 0.069
- Cool Gray #8D99AE ΔE 0.074
- Cornflower Blue #6495ED ΔE 0.074
- Bluey Grey #89A0B0 ΔE 0.075
- Cool Steel #97A7B3 ΔE 0.075
Use #979FDF 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.