#65738F
Closest named color: Metallic Blue (#4F738E). oklch(55.5% 0.047 264.1), rgb(101, 115, 143).
Aa
White text reads best on this color (4.77:1).
About this color
#65738F is a medium-dark, muted blue. In OKLCH its lightness is 55%, its chroma 0.047 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Metallic Blue (#4F738E), ΔE 0.028 away. White text reads best on it, at 4.77:1.
| Hue family | Blues |
| Lightness | medium-dark (55%) |
| Chroma | muted (0.047) |
| Temperature | cool |
| Nearest name | Metallic Blue (#4F738E) |
| Black text | 4.40:1 |
| White text | 4.77:1 |
Values
| HEX | #65738F |
| RGB | rgb(101, 115, 143) |
| HSL | hsl(220, 17%, 48%) |
| OKLCH | oklch(55.5% 0.047 264.1) |
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 #65738F | 4.77:1 | AA | Lc -78.5 | Fine for body text |
| Black text on #65738F | 4.40:1 | AA large text | Lc 31.0 | Non-text elements, placeholder text |
| #65738F text on white | 4.77:1 | AA | Lc 73.1 | Content text, not long reading |
| #65738F text on black | 4.40:1 | AA large text | Lc -28.6 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E8EAEE
oklch(93.7% 0.006 264.5)
-
Step 200
200
#D5D9E1
oklch(88.5% 0.012 264.5)
-
Step 300
300
#BAC1CF
oklch(81% 0.021 264.4)
-
Step 400
400
#96A1B6
oklch(70.7% 0.033 263.4)
-
Step 500
500
#7C8AA4
oklch(63.1% 0.043 262.8)
-
Step 600
600 (this color)
#65738F
oklch(55.5% 0.047 264.1)
-
Step 700
700
#54617A
oklch(49.1% 0.043 263.3)
-
Step 800
800
#454F63
oklch(42.7% 0.036 264.1)
-
Step 900
900
#3A4251
oklch(37.8% 0.028 263)
-
Step 950
950
#22262F
oklch(26.9% 0.018 266.3)
#65738F 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) | #6A7590 | 0.010 |
| Deuteranopia (no green cones) | #66718E | 0.006 |
| Tritanopia (no blue cones) | #5A797C | 0.043 |
| Achromatopsia (no color) | #737373 | 0.047 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #65738F
#65738F
oklch(55.5% 0.047 264.1)
- #807153
#807153
oklch(55.5% 0.047 84.3)
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 #65738F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Metallic Blue #4F738E ΔE 0.028
- Grey Blue #647D8E ΔE 0.030
- Battleship Gray #6C757D ΔE 0.032
- Stormy Blue #507B9C ΔE 0.033
- Battleship Grey #6B7C85 ΔE 0.036
- Dull Blue #49759C ΔE 0.037
- Cerulean #457B9D ΔE 0.042
- Slate Gray #708090 ΔE 0.042
Use #65738F 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.