#61739B
Closest named color: Dull Blue (#49759C). oklch(55.7% 0.066 265.6), rgb(97, 115, 155).
Aa
White text reads best on this color (4.73:1).
About this color
#61739B is a medium-dark, muted blue. In OKLCH its lightness is 56%, its chroma 0.066 and its hue 266°. Its hue sits on the cool side of the wheel. The nearest named color is Dull Blue (#49759C), ΔE 0.028 away. White text reads best on it, at 4.73:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Dull Blue (#49759C) |
| Black text | 4.43:1 |
| White text | 4.73:1 |
Values
| HEX | #61739B |
| RGB | rgb(97, 115, 155) |
| HSL | hsl(221, 23%, 49%) |
| OKLCH | oklch(55.7% 0.066 265.6) |
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 #61739B | 4.73:1 | AA | Lc -78.3 | Fine for body text |
| Black text on #61739B | 4.43:1 | AA large text | Lc 31.2 | Non-text elements, placeholder text |
| #61739B text on white | 4.73:1 | AA | Lc 72.9 | Content text, not long reading |
| #61739B text on black | 4.43:1 | AA large text | Lc -28.8 | Dividers and decoration only |
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 600.
-
Step 50
50
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAF0
oklch(93.6% 0.009 264.5)
-
Step 200
200
#D4D9E4
oklch(88.5% 0.016 266.3)
-
Step 300
300
#B7C1D5
oklch(80.9% 0.03 264.4)
-
Step 400
400
#92A1BF
oklch(70.8% 0.047 264.2)
-
Step 500
500
#7889AF
oklch(63.1% 0.061 265.9)
-
Step 600
600 (this color)
#61739B
oklch(55.7% 0.066 265.6)
-
Step 700
700
#506084
oklch(49.1% 0.061 265.7)
-
Step 800
800
#424F6B
oklch(42.8% 0.05 265.1)
-
Step 900
900
#374157
oklch(37.6% 0.04 265.5)
-
Step 950
950
#212633
oklch(27% 0.025 268.3)
#61739B 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) | #66769D | 0.012 |
| Deuteranopia (no green cones) | #60719A | 0.006 |
| Tritanopia (no blue cones) | #4F7B81 | 0.059 |
| Achromatopsia (no color) | #737373 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #61739B
#61739B
oklch(55.7% 0.066 265.6)
- #857145
#857145
oklch(55.7% 0.066 85.9)
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 #61739B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dull Blue #49759C ΔE 0.028
- Stormy Blue #507B9C ΔE 0.029
- Metallic Blue #4F738E ΔE 0.032
- Cerulean #457B9D ΔE 0.036
- Grey Blue #647D8E ΔE 0.041
- Muted Blue #3B719F ΔE 0.045
- Flat Blue #3C73A8 ΔE 0.045
- Off Blue #5684AE ΔE 0.050
Use #61739B 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.