#737FAC
Closest named color: Lavender Gray (#7E7F9A). oklch(60.4% 0.07 272.6), rgb(115, 127, 172).
Aa
Black text reads best on this color (5.36:1).
About this color
#737FAC is a medium-dark, moderately saturated blue. In OKLCH its lightness is 60%, its chroma 0.070 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Lavender Gray (#7E7F9A), ΔE 0.031 away. Black text reads best on it, at 5.36:1.
| Hue family | Blues |
| Lightness | medium-dark (60%) |
| Chroma | moderately saturated (0.070) |
| Temperature | cool |
| Nearest name | Lavender Gray (#7E7F9A) |
| Black text | 5.36:1 |
| White text | 3.91:1 |
Values
| HEX | #737FAC |
| RGB | rgb(115, 127, 172) |
| HSL | hsl(227, 26%, 56%) |
| OKLCH | oklch(60.4% 0.07 272.6) |
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 #737FAC | 3.91:1 | AA large text | Lc -72.1 | Content text, not long reading |
| Black text on #737FAC | 5.36:1 | AA | Lc 37.5 | Non-text elements, placeholder text |
| #737FAC text on white | 3.91:1 | AA large text | Lc 66.6 | Content text, not long reading |
| #737FAC text on black | 5.36:1 | AA | Lc -35.1 | Non-text elements, placeholder text |
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
#F4F5F9
oklch(97.1% 0.005 275)
-
Step 100
100
#E7EAF1
oklch(93.7% 0.01 267.4)
-
Step 200
200
#D5D9E6
oklch(88.6% 0.018 272.3)
-
Step 300
300
#B9C0D7
oklch(81% 0.033 272.2)
-
Step 400
400
#959FC4
oklch(70.7% 0.055 273.1)
-
Step 500
500 (this color)
#737FAC
oklch(60.4% 0.07 272.6)
-
Step 600
600
#6470A0
oklch(55.5% 0.076 272.9)
-
Step 700
700
#535E89
oklch(49.1% 0.07 272.6)
-
Step 800
800
#444D6F
oklch(42.7% 0.058 272.4)
-
Step 900
900
#39405A
oklch(37.7% 0.046 272.4)
-
Step 950
950
#222635
oklch(27.2% 0.029 272.8)
#737FAC 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) | #7183AE | 0.011 |
| Deuteranopia (no green cones) | #6D7EAB | 0.009 |
| Tritanopia (no blue cones) | #63888F | 0.063 |
| Achromatopsia (no color) | #818181 | 0.070 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #737FAC
#737FAC
oklch(60.4% 0.07 272.6)
- #90814F
#90814F
oklch(60.5% 0.071 93.3)
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 #737FAC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Lavender Gray #7E7F9A ΔE 0.031
- Dusty Blue #5A86AD ΔE 0.034
- Off Blue #5684AE ΔE 0.036
- Faded Blue #658CBB ΔE 0.039
- Silver Lake Blue #778DA9 ΔE 0.042
- Steel #738595 ΔE 0.044
- Light Slate Gray #778899 ΔE 0.045
- Slate Gray #708090 ΔE 0.045
Use #737FAC 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.