#618DA0
Closest named color: Blue Grey (#758DA3). oklch(61.9% 0.056 226.8), rgb(97, 141, 160).
Aa
Black text reads best on this color (5.82:1).
About this color
#618DA0 is a medium-dark, muted teal or cyan. In OKLCH its lightness is 62%, its chroma 0.056 and its hue 227°. Its hue sits on the cool side of the wheel. The nearest named color is Blue Grey (#758DA3), ΔE 0.025 away. Black text reads best on it, at 5.82:1.
| Hue family | Teals and cyans |
| Lightness | medium-dark (62%) |
| Chroma | muted (0.056) |
| Temperature | cool |
| Nearest name | Blue Grey (#758DA3) |
| Black text | 5.82:1 |
| White text | 3.60:1 |
Values
| HEX | #618DA0 |
| RGB | rgb(97, 141, 160) |
| HSL | hsl(198, 25%, 50%) |
| OKLCH | oklch(61.9% 0.056 226.8) |
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 #618DA0 | 3.60:1 | AA large text | Lc -69.1 | Content text, not long reading |
| Black text on #618DA0 | 5.82:1 | AA | Lc 40.5 | Non-text elements, placeholder text |
| #618DA0 text on white | 3.60:1 | AA large text | Lc 63.6 | Content text, not long reading |
| #618DA0 text on black | 5.82:1 | AA | Lc -38.1 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBEE
oklch(93.6% 0.008 228.9)
-
Step 200
200
#CFDBE1
oklch(88.4% 0.015 229)
-
Step 300
300
#AFC5CE
oklch(81% 0.027 224.3)
-
Step 400
400
#84A7B6
oklch(70.8% 0.044 225.9)
-
Step 500
500 (this color)
#618DA0
oklch(61.9% 0.056 226.8)
-
Step 600
600
#4B7B8F
oklch(55.7% 0.061 226.5)
-
Step 700
700
#3C677A
oklch(49% 0.057 228.2)
-
Step 800
800
#325463
oklch(42.6% 0.047 227.9)
-
Step 900
900
#2C4651
oklch(37.8% 0.037 226.5)
-
Step 950
950
#1A292F
oklch(27% 0.023 224.8)
#618DA0 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) | #838BA1 | 0.043 |
| Deuteranopia (no green cones) | #7A84A0 | 0.038 |
| Tritanopia (no blue cones) | #499393 | 0.039 |
| Achromatopsia (no color) | #878787 | 0.056 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #618DA0
#618DA0
oklch(61.9% 0.056 226.8)
- #A37C69
#A37C69
oklch(61.9% 0.056 47.2)
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 #618DA0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Blue Grey #758DA3 ΔE 0.025
- Light Slate Gray #778899 ΔE 0.028
- Steel #738595 ΔE 0.029
- Silver Lake Blue #778DA9 ΔE 0.032
- Dusty Blue #5A86AD ΔE 0.034
- Steel Grey #6F828A ΔE 0.039
- Slate Gray #708090 ΔE 0.039
- Off Blue #5684AE ΔE 0.041
Use #618DA0 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.