#737FC7
Closest named color: Faded Blue (#658CBB). oklch(61.7% 0.11 275.5), rgb(115, 127, 199).
Aa
Black text reads best on this color (5.58:1).
About this color
#737FC7 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 62%, its chroma 0.110 and its hue 276°. Its hue sits on the cool side of the wheel. The nearest named color is Faded Blue (#658CBB), ΔE 0.047 away. Black text reads best on it, at 5.58:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | moderately saturated (0.110) |
| Temperature | cool |
| Nearest name | Faded Blue (#658CBB) |
| Black text | 5.58:1 |
| White text | 3.75:1 |
Values
| HEX | #737FC7 |
| RGB | rgb(115, 127, 199) |
| HSL | hsl(231, 43%, 62%) |
| OKLCH | oklch(61.7% 0.11 275.5) |
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 #737FC7 | 3.75:1 | AA large text | Lc -70.5 | Content text, not long reading |
| Black text on #737FC7 | 5.58:1 | AA | Lc 39.0 | Non-text elements, placeholder text |
| #737FC7 text on white | 3.75:1 | AA large text | Lc 65.0 | Content text, not long reading |
| #737FC7 text on black | 5.58:1 | AA | Lc -36.6 | 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
#F4F5FA
oklch(97.1% 0.007 277.2)
-
Step 100
100
#E7E9F5
oklch(93.6% 0.016 278.5)
-
Step 200
200
#D3D8ED
oklch(88.5% 0.029 275.1)
-
Step 300
300
#B6BEE4
oklch(80.8% 0.054 275.8)
-
Step 400
400
#919CD6
oklch(70.6% 0.086 275.7)
-
Step 500
500 (this color)
#737FC7
oklch(61.7% 0.11 275.5)
-
Step 600
600
#606CB8
oklch(55.6% 0.118 275.1)
-
Step 700
700
#50599F
oklch(49% 0.112 275.9)
-
Step 800
800
#414981
oklch(42.6% 0.093 275.6)
-
Step 900
900
#373E67
oklch(37.8% 0.071 275.1)
-
Step 950
950
#20243C
oklch(26.9% 0.045 275.7)
#737FC7 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) | #6687CA | 0.025 |
| Deuteranopia (no green cones) | #5F81C5 | 0.026 |
| Tritanopia (no blue cones) | #588D9A | 0.096 |
| Achromatopsia (no color) | #848484 | 0.110 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #737FC7
#737FC7
oklch(61.7% 0.11 275.5)
- #9A842B
#9A842B
oklch(61.7% 0.109 94.9)
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 #737FC7, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Faded Blue #658CBB ΔE 0.047
- Soft Blue #6488EA ΔE 0.055
- Cool Blue #4984B8 ΔE 0.057
- Off Blue #5684AE ΔE 0.058
- Dusty Blue #5A86AD ΔE 0.058
- Steel Blue #4682B4 ΔE 0.062
- Deep Lilac #966EBD ΔE 0.064
- Dark Sky Blue #448EE4 ΔE 0.066
Use #737FC7 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.