#657398
Closest named color: Stormy Blue (#507B9C). oklch(55.9% 0.06 268.4), rgb(101, 115, 152).
Aa
White text reads best on this color (4.70:1).
About this color
#657398 is a medium-dark, muted blue. In OKLCH its lightness is 56%, its chroma 0.060 and its hue 268°. Its hue sits on the cool side of the wheel. The nearest named color is Stormy Blue (#507B9C), ΔE 0.031 away. White text reads best on it, at 4.70:1.
| Hue family | Blues |
| Lightness | medium-dark (56%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Stormy Blue (#507B9C) |
| Black text | 4.45:1 |
| White text | 4.70:1 |
Values
| HEX | #657398 |
| RGB | rgb(101, 115, 152) |
| HSL | hsl(224, 20%, 50%) |
| OKLCH | oklch(55.9% 0.06 268.4) |
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 #657398 | 4.70:1 | AA | Lc -78.1 | Fine for body text |
| Black text on #657398 | 4.45:1 | AA large text | Lc 31.4 | Non-text elements, placeholder text |
| #657398 text on white | 4.70:1 | AA | Lc 72.7 | Content text, not long reading |
| #657398 text on black | 4.45:1 | AA large text | Lc -29.0 | 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
#E7EAEF
oklch(93.6% 0.007 260.7)
-
Step 200
200
#D5D9E3
oklch(88.5% 0.014 268.5)
-
Step 300
300
#B9C0D3
oklch(80.8% 0.028 269.6)
-
Step 400
400
#95A0BC
oklch(70.7% 0.043 268.4)
-
Step 500
500
#7B89AC
oklch(63.2% 0.055 267.8)
-
Step 600
600 (this color)
#657398
oklch(55.9% 0.06 268.4)
-
Step 700
700
#536081
oklch(49.2% 0.056 267.7)
-
Step 800
800
#444E69
oklch(42.6% 0.047 268.6)
-
Step 900
900
#394155
oklch(37.6% 0.036 267.7)
-
Step 950
950
#222632
oklch(27% 0.023 270.4)
#657398 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) | #67769A | 0.009 |
| Deuteranopia (no green cones) | #637197 | 0.007 |
| Tritanopia (no blue cones) | #567A80 | 0.053 |
| Achromatopsia (no color) | #737373 | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #657398
#657398
oklch(55.9% 0.06 268.4)
- #83724A
#83724A
oklch(55.8% 0.06 87.4)
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 #657398, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Stormy Blue #507B9C ΔE 0.031
- Metallic Blue #4F738E ΔE 0.034
- Dull Blue #49759C ΔE 0.034
- Grey Blue #647D8E ΔE 0.037
- Cerulean #457B9D ΔE 0.040
- Battleship Gray #6C757D ΔE 0.045
- Grey Purple #826D8C ΔE 0.046
- Battleship Grey #6B7C85 ΔE 0.047
Use #657398 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.