#6A7399
Closest named color: Stormy Blue (#507B9C). oklch(56.3% 0.06 274), rgb(106, 115, 153).
Aa
White text reads best on this color (4.64:1).
About this color
#6A7399 is a medium-dark, muted blue. In OKLCH its lightness is 56%, its chroma 0.060 and its hue 274°. Its hue sits on the cool side of the wheel. The nearest named color is Stormy Blue (#507B9C), ΔE 0.037 away. White text reads best on it, at 4.64:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 4.52:1 |
| White text | 4.64:1 |
Values
| HEX | #6A7399 |
| RGB | rgb(106, 115, 153) |
| HSL | hsl(229, 19%, 51%) |
| OKLCH | oklch(56.3% 0.06 274) |
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 #6A7399 | 4.64:1 | AA | Lc -77.7 | Fine for body text |
| Black text on #6A7399 | 4.52:1 | AA | Lc 31.9 | Non-text elements, placeholder text |
| #6A7399 text on white | 4.64:1 | AA | Lc 72.2 | Content text, not long reading |
| #6A7399 text on black | 4.52:1 | AA | Lc -29.5 | 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
#E8EAEF
oklch(93.7% 0.007 268.5)
-
Step 200
200
#D6D9E3
oklch(88.6% 0.014 272.7)
-
Step 300
300
#BBC0D3
oklch(81% 0.027 274)
-
Step 400
400
#989FBC
oklch(70.7% 0.043 274.6)
-
Step 500
500
#7F87AB
oklch(63% 0.055 274.9)
-
Step 600
600 (this color)
#6A7399
oklch(56.3% 0.06 274)
-
Step 700
700
#575F81
oklch(49.2% 0.055 274)
-
Step 800
800
#474D69
oklch(42.7% 0.047 274.9)
-
Step 900
900
#3B4055
oklch(37.6% 0.037 274.1)
-
Step 950
950
#232632
oklch(27.1% 0.023 273.8)
#6A7399 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) | #68779B | 0.011 |
| Deuteranopia (no green cones) | #647398 | 0.009 |
| Tritanopia (no blue cones) | #5E7A80 | 0.053 |
| Achromatopsia (no color) | #747474 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6A7399
#6A7399
oklch(56.3% 0.06 274)
- #81754C
#81754C
oklch(56.3% 0.06 93.7)
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 #6A7399, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stormy Blue #507B9C ΔE 0.037
- Grey Blue #647D8E ΔE 0.039
- Grey Purple #826D8C ΔE 0.040
- Dull Blue #49759C ΔE 0.041
- Metallic Blue #4F738E ΔE 0.041
- Slate Gray #708090 ΔE 0.046
- Cerulean #457B9D ΔE 0.046
- Battleship Gray #6C757D ΔE 0.047
Use #6A7399 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.