#758399
Closest named color: Steel (#738595). oklch(60.6% 0.037 259.4), rgb(117, 131, 153).
Aa
Black text reads best on this color (5.46:1).
About this color
#758399 is a medium-dark, muted blue. In OKLCH its lightness is 61%, its chroma 0.037 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Steel (#738595), ΔE 0.010 away. Black text reads best on it, at 5.46:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.037) |
| Temperature | cool |
| Nearest name | Steel (#738595) |
| Black text | 5.46:1 |
| White text | 3.84:1 |
Values
| HEX | #758399 |
| RGB | rgb(117, 131, 153) |
| HSL | hsl(217, 15%, 53%) |
| OKLCH | oklch(60.6% 0.037 259.4) |
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 #758399 | 3.84:1 | AA large text | Lc -71.4 | Content text, not long reading |
| Black text on #758399 | 5.46:1 | AA | Lc 38.1 | Non-text elements, placeholder text |
| #758399 text on white | 3.84:1 | AA large text | Lc 65.9 | Content text, not long reading |
| #758399 text on black | 5.46:1 | AA | Lc -35.7 | 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
#F4F5F7
oklch(97% 0.003 264.5)
-
Step 100
100
#E8EAED
oklch(93.6% 0.005 258.3)
-
Step 200
200
#D5D9E0
oklch(88.4% 0.011 261.8)
-
Step 300
300
#BAC1CD
oklch(80.9% 0.019 261.3)
-
Step 400
400
#96A1B3
oklch(70.6% 0.029 260.3)
-
Step 500
500 (this color)
#758399
oklch(60.6% 0.037 259.4)
-
Step 600
600
#65748C
oklch(55.6% 0.042 259.8)
-
Step 700
700
#546177
oklch(49% 0.039 260.9)
-
Step 800
800
#455060
oklch(42.8% 0.03 257.7)
-
Step 900
900
#3A424F
oklch(37.7% 0.025 260.1)
-
Step 950
950
#22272E
oklch(27.1% 0.015 256.8)
#758399 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) | #7C849A | 0.011 |
| Deuteranopia (no green cones) | #788099 | 0.009 |
| Tritanopia (no blue cones) | #6C888A | 0.034 |
| Achromatopsia (no color) | #828282 | 0.037 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #758399
#758399
oklch(60.6% 0.037 259.4)
- #8E8069
#8E8069
oklch(60.6% 0.037 80.1)
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 #758399, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel #738595 ΔE 0.010
- Light Slate Gray #778899 ΔE 0.015
- Lavender Gray #7E7F9A ΔE 0.017
- Slate Gray #708090 ΔE 0.017
- Steel Grey #6F828A ΔE 0.025
- Blue Grey #758DA3 ΔE 0.028
- Silver Lake Blue #778DA9 ΔE 0.032
- Grey Blue #647D8E ΔE 0.033
Use #758399 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.