#778599
Closest named color: Steel (#738595). oklch(61.2% 0.035 257.3), rgb(119, 133, 153).
Aa
Black text reads best on this color (5.59:1).
About this color
#778599 is a medium-dark, muted blue. In OKLCH its lightness is 61%, its chroma 0.035 and its hue 257°. Its hue sits on the cool side of the wheel. The nearest named color is Steel (#738595), ΔE 0.009 away. Black text reads best on it, at 5.59:1.
| Hue family | Blues |
| Lightness | medium-dark (61%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Steel (#738595) |
| Black text | 5.59:1 |
| White text | 3.75:1 |
Values
| HEX | #778599 |
| RGB | rgb(119, 133, 153) |
| HSL | hsl(215, 14%, 53%) |
| OKLCH | oklch(61.2% 0.035 257.3) |
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 #778599 | 3.75:1 | AA large text | Lc -70.6 | Content text, not long reading |
| Black text on #778599 | 5.59:1 | AA | Lc 39.0 | Non-text elements, placeholder text |
| #778599 text on white | 3.75:1 | AA large text | Lc 65.1 | Content text, not long reading |
| #778599 text on black | 5.59:1 | AA | Lc -36.6 | 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
#D5D9DF
oklch(88.4% 0.009 258.3)
-
Step 300
300
#BAC1CC
oklch(80.9% 0.017 259.4)
-
Step 400
400
#96A2B2
oklch(70.8% 0.027 255.6)
-
Step 500
500 (this color)
#778599
oklch(61.2% 0.035 257.3)
-
Step 600
600
#66748A
oklch(55.5% 0.038 259.4)
-
Step 700
700
#546275
oklch(49.2% 0.035 256.1)
-
Step 800
800
#45505F
oklch(42.7% 0.029 256.2)
-
Step 900
900
#3A424E
oklch(37.7% 0.023 258.4)
-
Step 950
950
#22272E
oklch(27.1% 0.015 256.8)
#778599 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) | #7E869A | 0.011 |
| Deuteranopia (no green cones) | #7B8299 | 0.010 |
| Tritanopia (no blue cones) | #6E898B | 0.031 |
| Achromatopsia (no color) | #848484 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #778599
#778599
oklch(61.2% 0.035 257.3)
- #90826D
#90826D
oklch(61.3% 0.035 78)
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 #778599, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Steel #738595 ΔE 0.009
- Light Slate Gray #778899 ΔE 0.009
- Lavender Gray #7E7F9A ΔE 0.019
- Slate Gray #708090 ΔE 0.021
- Blue Grey #758DA3 ΔE 0.023
- Steel Grey #6F828A ΔE 0.026
- Silver Lake Blue #778DA9 ΔE 0.028
- Gray #808080 ΔE 0.037
Use #778599 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.