#6F899B
Closest named color: Light Slate Gray (#778899). oklch(61.6% 0.04 238.5), rgb(111, 137, 155).
Aa
Black text reads best on this color (5.72:1).
About this color
#6F899B is a medium-dark, muted blue. In OKLCH its lightness is 62%, its chroma 0.040 and its hue 239°. Its hue sits on the cool side of the wheel. The nearest named color is Light Slate Gray (#778899), ΔE 0.010 away. Black text reads best on it, at 5.72:1.
| Hue family | Blues |
| Lightness | medium-dark (62%) |
| Chroma | muted (0.040) |
| Temperature | cool |
| Nearest name | Light Slate Gray (#778899) |
| Black text | 5.72:1 |
| White text | 3.66:1 |
Values
| HEX | #6F899B |
| RGB | rgb(111, 137, 155) |
| HSL | hsl(205, 18%, 52%) |
| OKLCH | oklch(61.6% 0.04 238.5) |
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 #6F899B | 3.66:1 | AA large text | Lc -69.7 | Content text, not long reading |
| Black text on #6F899B | 5.72:1 | AA | Lc 39.8 | Non-text elements, placeholder text |
| #6F899B text on white | 3.66:1 | AA large text | Lc 64.2 | Content text, not long reading |
| #6F899B text on black | 5.72:1 | AA | Lc -37.4 | 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
#F4F6F7
oklch(97.2% 0.003 228.8)
-
Step 100
100
#E6EAED
oklch(93.5% 0.006 239.8)
-
Step 200
200
#D3DAE0
oklch(88.5% 0.011 243.7)
-
Step 300
300
#B5C3CC
oklch(80.9% 0.02 235.8)
-
Step 400
400
#8FA4B2
oklch(70.7% 0.031 237.1)
-
Step 500
500 (this color)
#6F899B
oklch(61.6% 0.04 238.5)
-
Step 600
600
#5C778A
oklch(55.5% 0.043 239.2)
-
Step 700
700
#4B6476
oklch(49% 0.042 240)
-
Step 800
800
#3E5260
oklch(42.8% 0.034 239.1)
-
Step 900
900
#35444E
oklch(37.8% 0.026 237.6)
-
Step 950
950
#1F282E
oklch(27.1% 0.017 237.4)
#6F899B 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) | #81889C | 0.024 |
| Deuteranopia (no green cones) | #7B839B | 0.022 |
| Tritanopia (no blue cones) | #628E8F | 0.032 |
| Achromatopsia (no color) | #858585 | 0.040 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #6F899B
#6F899B
oklch(61.6% 0.04 238.5)
- #98806D
#98806D
oklch(61.7% 0.041 60.3)
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 #6F899B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Slate Gray #778899 ΔE 0.010
- Steel #738595 ΔE 0.013
- Blue Grey #758DA3 ΔE 0.017
- Silver Lake Blue #778DA9 ΔE 0.025
- Slate Gray #708090 ΔE 0.026
- Steel Grey #6F828A ΔE 0.028
- Lavender Gray #7E7F9A ΔE 0.033
- Dusty Blue #5A86AD ΔE 0.039
Use #6F899B 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.